This will cover the equivalent of the first three volumes of the novel. It will use a mix of manga and novel feats, defaulting to the visual manga feats where equally detailed. It hence covers the majority of the currently released manga chapters.

Vandalieu Ark Hillwillow Solder Zakkart

Vandalieu is the main protagonist of the Japanese light novel series The Death Mage Who Doesn't Want a Fourth Time. Born as Amamiya Hiroto in modern Japan, he is reincarnated into the world of Origin, where he dies tragically a second time and ultimately ends up in the world of Lambda. Marked by his unique death attribute mana, the young Dhampir comes to be both feared as a potential calamity and revered as an emperor by his growing nation of undead, monsters, and outcasts.

Physicals

Explanation of the Stat System in Lambda:

In Lambda the laws of nature are such that the battle capabilities of individuals are reflected and ruled by their stats. There are 6 stats total: Vitality, Mana, Strength, Agility, Stamina and Intelligence.

This is Vandalieu's stat sheet at the end of volume 3. (Chapter 66) Here are averages of human stats for comparision. (Appendix 3)

Stats are mostly what they sounds like, with two exceptions. The minor one of the two is Intelligence, which is also connected to spellcasting output. (Chapter 33)

The big one is Vitality. Vitality functions like the HP stat in a video game, which as a consequence means that damage in Lambda doesn't work as in regular physics. Even if you manage to land an attack which mostly or completely ignores defense it won't automatically kill the target. That's because damage is calculated using the defense stat (and other factors) and then the result is subtracted from the remaining Vitality. The amount of the injury produced is then determined by how much Vitality was lost relative to the total Vitality stat. As a result, there is no such things as true durability bypassing hax in Lambda. Even the ability to ignore all defense that works fine in the universe of Origin isn't an instant win in Lambda. It might still deal a lot of damage, though. (Side Chapter 21)

A good example of this is Legion's Counter ability. In Origin it was an ability that inflicted the same damage on the target as was inflicted on the user. However, after being reincarnated in Lambda, the ability turned into one that dealt the same amount of Vitality damage. As the total Vitality of creatures differs the damage is vastly different. When a dinosaur bites Legion it inflicts minor damage on them, but when reflect the same "amount" of damage immediately kills them. (Chapter 128)

It should be noted that the Vitality stat even applied when Vandalieu killed Konoe Miyaji, despite the latter being outside of the universe of Lambda and never having entered it. This indicates that Vitality applies in confrontations between people if even just one of them is from Lambda. (Chapter 127)

Strength:

• Can harm Gordon (Chapter 46), despite him using defensive skill prior (Chapter 46), via physical attacks. Gordon is on the level of a B-class adventurer (Volume 1 Character Summary) and can fight Vigaro (Chapter 45), a rank 7 monster (Chapter 53) at the point specializing in physical combat. Rank 7 Monsters can tank hits from lightweight missiles and B-class adventurers are expected to be able to defeat those or even stronger monsters. (Appendix 3)
• Can turn the ground into hands easily strong enough to bury Rank 3 monsters. (Chapter 16) Rank 3 monsters are about as strong as a brownbear. (Appendix 2)
• Can create stone hands strong enough to briefly restrain the orichalcum golem. (Chapter 35) Said golem is strong enough to kick its own giant metal head at massive speed. (Chapter 35)
• Can create massive golems and defeat those who can easily crush them, i.e. Gordon. (Chapter 43)
• Can create cursed weapons strong enough to launch massive boulders and Riley, who as a B-class adventurer is comparable to Gordon, can destroy those in a single attack. (Chapter 43) The novel specifies that these are human-sized boulders and that Gordon is destroying them, too. (Chapter 47)
• Can make Golems out of wood harder than iron and able to withstand charges of 5m tall boars. The resulting wood golems can still be easily destroyed by orc generals the like of which can be defeated by Rank 5 Vigaro. (Chapter 19)
• Can send a huge orc flying all the way to the edge of the village with his mana bullets. (Chapter 21)
• 5 meter big turtles that fly at high speed are considered just Rank 5. (Chapter 41)
• Riley can destroy dozens of tons worth of rocks with a single martial art. (Chapter 55)

Durability:

• His magic barriers can block attacks from Gordon. (Chapter 46) Gordon is on the level of a B-class adventurer (Volume 1 Character Summary) and can fight Vigaro (Chapter 45), a rank 7 monster (Chapter 53) at the point specializing in physical combat. Rank 7 Monsters can tank hits from lightweight missiles and B-class adventurers are expected to be able to defeat those or even stronger monsters. (Appendix 3)
• His barriers defend him against even the strongest attack of Bugogan, a Rank 6 Noble Orc. (Chapter 33)

Speed:

• Fast enough to dodges attacks from Gordan (Chapter 46) and keep up with him throughout their fight. Gordan is on the level of a B-class adventurer (Volume 1 Character Summary) and land hits on Vigaro (Chapter 45), a rank 7 monster at the point specializing in physical combat.
• Should be faster or at least comparable to the D-Rank Adventurer Kachia, who can swing a bastard sword faster than the eye can see. (Chapter 15)
• Should be faster than the fodder adventurers that barely caught up with old Zadiris, who can dodge an arrow. (Chapter 13)
• Stated to fly with the speed of a bullet. (Chapter 20)

Skill & Combat Smarts:

• Has Level 4 in Unarmed Fighting Technique. (Chapter 66) That gives us a rough idea of his fighting skill, as Level 5 is a first rate user by the superhuman standards of Lambda. Level 10 would be what in an ordinary world is only possible in fantasy. (Side Chapter 33) So Level 4 is already considerably gifted.
• His fight against the Nobel Orc shows well how Vandalieu is a creative, hard to anticipate and varied fighter, who tends to approach his battles with pessimistic caution. (Chapter 24)

Special Abilities

Death Magic

Magic that can only be learned by those who inherently have no affinity for any attribute of magic. It might be more appropriate to say that such people are born without an affinity for any other attribute. It cannot be gained by those who have no inherent affinity for any attribute due to a curse.

It is an attribute for which nobody in either Origin or Lambda possesses, other than Vandalieu, and there are no past examples, either.

However, it is apparently partially similar to the special abilities wielded by the Demon King Guduranis.

(Appendix 1)

Microorganism Elimination

• Can eliminate insects with instant death magic (Chapter 3)
• In the novel these are two spells: "With that said, the only spells he could use was『Sterilization』, a spell that exterminated microscopic organisms within its range, and『Bug Killer』, a version of the same spell that did the same thing to insects." (Chapter 3)
• Here are the novel definitions. (Appendix 1)

Undead Transformation

• Can put an available soul into any non-living thing to create an undead / golem out of it. Since this includes objects he can essentially control non-living objects to his will. (Chapter 4)
• Here is the novel explanation (Chapter 2)
• Can talk to undead, including undead insects that he can use for scouting. This includes spirits. (Chapter 4)
• He can remotely see through his undead. (Chapter 12)
• Can reincarnate someone by putting their soul into a Zygote. (Chapter 25)
• Here's the official description from the novel. (Appendix 1)

Golem Transformation

• He can turn the ground below people's feet into an Earth Golem. (Chapter 5) This Golem can be precisely manipulated in shape. (Chapter 6)
• Can also turn plants into undead to control. (Chapter 5)
• Can also do an Earth Wall, likely by similar principle as the Golem. (Chapter 8)
• Turned the city walls and some buildings into giant golems and made them walk off. However, that took preparation. (Chapter 9)
• Can be used to disarm traps and open locks. (Chapter 11)
• Can refit armor using this and build houses. (Chapter 19)
• Created a Golem out of a wooden wall (Chapter 20)
• Can use this to shape orichalcum, despite it being extremely tough and resistant to magic. (Chapter 35)
• Here's the official description from the novel. (Appendix 1)

Self-Resurrection

• Can resurrect himself once should he die (Chapter 2)

Life Detection

• Can sense life from a distance. (Chapter 8)
• Can also be used to sense how much life remains in someone. (Chapter 11)
• Here's the official description from the novel. (Appendix 1)

Spirit Flame

• Can create a small cold flame. (Chapter 8)
• Here's the official description from the novel. (Appendix 1)

Heat Leech

• Can remove heat from objects. (Chapter 12)
• Here's the novel description. (Appendix 1)

Magic Absorption Barrier

• Drains the magic from any spell that is cast within it, negating the spell. (Chapter 14)
• Can disarm curses / disenchant items using this. (Chapter 27)
• Official novel description. (Appendix 1)

Corpse Healing

• Can heal undead, even things like missing limbs. (Chapter 14)
• Here is a case of him regrowing a flesh arm of a zombie near instantly. (Chapter 28)
• Here's the novel description. (Appendix 1)

Painlessness

• Can negate the pain of injuries. (Chapter 11)

Preservation

• Can preserve food with a spell. (Chapter 16)
• Here's the novel description. (Appendix 1)

Poison, Deadly Poison, Industrial Poison

• Can create poison from his body. (Chapter 16 - 17)
• Can transform his own blood into poison with several detrimental effects. (Chapter 24)
• The novel description mentions a number of different kinds of poisons that can be created. (Appendix 1)

Lifespan sense

• Can see if people are about to reach the end of their natural lifespan. (Chapter 17)

Spirit Form Transformation

• Can turn parts of his body into spirit form. (Chapter 17)
• Spirit form is essentially intangible. (Appendix 1) However, physical attacks seemingly can still damage it, but it's less than one-third of the original. (Chapter 9)
• Visual example of the way attacks pass through spirit form. (Chapter 20)
• He can stretch large distances this way. (Chapter 23)
• Can selectively transform just his internal organs intangible. (Chapter 24)
• Using spirit form he can grab the soul of someone possessing a body and hold it in place. (Chapter 25)
• Can change the form of the spiritual body however he wishes. This includes growing more heads, which allows him to think more things at once and cast more spells. (Chapter 36)
• Can grow a lot of heads. (Chapter 46)

Youth Transformation

• Can reverse ageing. (Chapter 17)
• Novel description. (Appendix 1)

Death Delay

• Can keep the Death away from someone, to prevent them from dying despite receiving lethal injuries, for the duration of the spell. (Chapter 50)
• Can also be used to prevent miscarriages and make it easier to get pregnant. (Chapter 18)

Lemure Creation / Remulux

• Can create a familiar to distract the opponent with intense bloodlust. (Chapter 21)
• Spell definition from the novel. (Appendix 1)

Danger Sense: Death

• A spell which tells Vandalieu whether his actions will lead to his or an allies death in advance. A limited kind of precognition in principle. (Appendix 1)
• By fusing in spirit form with another, he can give this ability to them as well. (Chapter 22) The novel version shows that this is in practice Van telepathically instructing her. It also mentions that Van has this spell permanently active. (Chapter 20)
• Given some time, Vandalieu can pre-check his strategy against enemies on whether they will result in death. (Chapter 23)

Impact-Negating Barrier

• Can create barriers that block physical hits. (Chapter 24)
• This barrier actually works by absorbing every kind of energy except mana. (Appendix 1)

Erase Presence

• As noted by his opponent here Vandalieu keeps erasing his presence. (Chapter 24)
• The novel notes he is subconsciously constantly using this spell. (Appendix 1)

Residual Thoughts

• Via an unnamed spell, Vandalieu can see residual thoughts of corpse parts. (Chapter 28)

Healing Negation

• Van can block regeneration. (Chapter 32)
• Here's the novel description. (Appendix 1)

Visualization

• Allows spirits to be seen by people other than Vandalieu. (Chapter 34)
• Spell description from the novel. (Appendix 1)

Death Bullet

• The primary offensive spell of Death Magic. Deals direct damage to Vitality. (Chapter 34)
• The novel confirms that it homes in on targets. (Chapter 49)
• The official novel description states that it works through armor and shields. (Appendix 1)

Out-of-body Experience

• Vandalieu can separate his soul from his body. (Chapter 36)

Disease, Deadly Disease, Industrial Disease

• Can create dieseases with various effects, relatively selective targeting and very short incubation time. (Chapter 43)
• The novel specifies that the fast mutation circumvents the immunity one would usually get after catching most dieseases once. (Chapter 62)
• Official spell description. (Appendix 1)

Bloodshed Enhancement

• An enchantment for weapons which makes them more lethal against living beings. (Appendix 1)

Disinfect & Detoxification

• Erases poison. (Appendix 1)

Deodorization

• Erases odors. (Appendix 1)

Preservation, Freshness Restoration, Decomposition, Fermentation and Maturation

• A number of spells used for making food. Might have other applications as well. (Appendix 1)

Aging, Inanimate Aging

• Makes things touched by the caster temporarily old. (Appendix 1)

Energy Absorption

• An enchantment that absorbs any kind of energy. Apparently can be cast unto living things as well. (Appendix 1)

Withering

• Evaporates the water content of the target. (Appendix 1)

Materialization

• Materializes a spirit. (Appendix 1)

Death-Attribute Charm / Mesmerize Undead:

• The novel describes it as follows: "As for his Death-Attribute Charm skill, he thought it was a skill that he had used in Origin. There were several occasions when the elderly researchers in Origin that had treated him as a guinea pig died of strokes, became spirits and then completely changed their personalities and apologized to him in tears. He hadn’t thought badly of them for it; if it weren’t for his conversations with the spirits in Origin, his mind would have crumbled long before his body died." (Chapter 4)
• Turned a small army of undead not created by him to his side in an instant. (Chapter 11)
• Also works on living armor. (Chapter 11)
• Even a spirit from another village came to deliver information to him. (Chapter 18) The novel specifies that it was a week for the spirit to arrive, so the distance was likely considerable. (Chapter 15 + 16)
• Works on ghouls. (Chapter 19) This is notable, as they are not actually undead, merely having an undead ancestor. (Appendix 4)
• Works on suicidal people. (Chapter 22)
• Worked on Eleanora. (Chapter 32) This tells us two important things. 1. It works on vampires. 2. It's powerful enough to work through mental resistance, as Eleanora has the Mental Corruption skill at Level 3 (Chapter 45) and that grants resistance to mental effects (Chapter 10).
• Can affect Cemetry Bees, simply because by name they are death related. (Chapter 34)

Bloodsucking

• Can regain mana by drinking blood (Novel Chapter 2): "Vandalieu sucked the blood from the last remaining rabbit to replenish his Mana, turned that into an Undead as well and then left his home, riding on the bed."

Chant Revocation

• Can cast his spells without a chant. (Chapter 15)

Alchemy

• Can craft magic items imbued with the effects of his spells. (Chapter 18)

Strengthen Followers

• Can strengthen those who follow under him. (Chapter 18)
• The novel goes into more detail. (Chapter 16)
• Here's the narrator explanation. (Chapter 16)

No-Attribute Magic

This is magic cast using Mana that hasn’t been influenced by any attribute and doesn’t exist in Origin.

Because it uses Mana that hasn’t been influenced by any attribute, anyone can use it no matter what attribute he or she has an affinity for. Thus, it is convenient for both those teaching the fundamentals of magic as well as those learning them, so apprentice mages begin learning the sensation of using and controlling Mana with this magic.

Because no-attribute Mana is not influenced by any attribute, it quickly disperses once it leaves the body. Because it is difficult to maintain, only has simple effects and using magic with an attribute produces more efficient and effective results, the people of Lambda consider it as little more than a tool to train with.

It is common for first-rate mages with level 5 in magic with an attribute to have a level 1 skill in No-Attribute Magic.

However, there are also a few who do not fail to perform fundamental training in no-attribute magic.

(Appendix 1)

Strengthening

• Official description from the novel. (Appendix 1)
• Leveled up an undead using this or a similar spell. (Chapter 11)

Healing Power Enhancement

• Can accelerate his own healing. (Chapter 14)
• Can quickly heal a deep flesh wound this way. (Chapter 24)
• Official description from the novel. (Appendix 1)

Mana Transfer

• Can supply a whole group of mages with mana using this spell. (Chapter 20)
• He can also do this from far away. (Chapter 23)
• Official description from the novel. Notably, on average the mana transfer only has 5% efficiency. (Appendix 1)

Telekinesis & Flight

• Vandalieu can fly. (Chapter 23)
• The novel specifies that it's actually the telekinesis spell he uses on himself to fly. (Appendix 1)

Mana Bullet

• Vandalieu can shoot big magic bullets. (Chapter 24)
• Here's the novel's description of the spell. (Appendix 1)
• Mana bullets have a range of several dozen meters. (Chapter 49)

Appraisal

• Vandalieu knows the Appriasal spell (Chapter 16) which tells the Caster things they could figure out on their own. (Appendix 1)

Physical Ability Enhancement

• Vandalieu can boost his strength using magic. (Appendix 1)

Surpass Limits

• Demonstrated here. (Chapter 30)

Unarmed Combat Technique

• Used the combat technique Spear Hand. (Chapter 30)
• Can perform an attack where he uses his own extended hands like whips. (Chapter 46)

Mental Corruption

• A skill that represents the depth of one's mental trauma, but also grants resistance to all interference with one's mind. (Chapter 10) Vandalieu has this skill at Level 10, the highest level. (Chapter 66)
• Vandalieu resisted the Demon Eyes of Charm from Eleonora. (Chapter 32)

Soul Break

• If given the opportunity, Vandalieu can destroy his opponent's soul. (Chapter 32)
• While he needs to crush the marble sized "true soul" in the spirit body to break a soul completely, any other damage has the side effect of permanently reducing the opponent's mana. (Chapter 46)

Multi-Cast

• Can sustain six spells at once with one head. (Chapter 35)

Parallel Thought Processing

• Can think about several things at once. (Chapter 59)

Long-distance Control

• Can control his physical body from a distance. (Chapter 35)

Rapid Healing

• A regeneration skill that quickly heals wounds, but not dismemberment. (Chapter 146)

Status Effect Resistance

• Allows the user to perform unhindered by any condition other than damage and lack of mana. (Chapter 26)

Magic Resistance

• Does what it says on the tin. (Chapter 29)

Dark Vision

• Allows the user to see in complete darkness just fine. (Chapter 54)

Venom Secretion (Claws, Fangs, Tongue)

• Can secret poison from the named bodyparts. (Chapter 81)

Surpass Limits

• Temporarily allows the user to perform beyond their regular abilities. (Chapter 63)

Materialization

• Allows Vandalieu to materialize his body after he turned it into spirit form. (Chapter 59)

Miscellaneous

• Is under the effect of three curses. (Chapter 3) Can earn Exp by his allies killing stuff, though. (Chapter 7)
• Vandalieu never shows any facial expressions, making him hard to read for most.