Idea for a possible 7* Kryla

Hey, so, I've been thinking for a while about what we might get for this Christmas (events, new units, updates on older units...) and thinking mostly about one of my favorite GL exclusive units, my forgotten-by-most Kryla. I came up with some skills I would like to see on a possible 7* for her, and before people say It's no good or whatever, I should say that I didn't try to make her Meta or anything like that, just tried to come up with new stuff, that would make her still useful in some situations, and of course, to keep her as a unit with a unique kit, like she already is. The skills are:

Counter Spell (cd skill): 5 turns cd, available on turn 1, removes all ailments/breaks/imperils from allies and apply them to all enemies. Dispels positive status effects on all enemies.

Last Curse (cd skill): 3 turns cd, available on turn 3, detonates debuffs/buffs on all enemies, dealing 3x magic damage SPR scaling to all enemies (3x per debuff/buff, up to 36x damage, 1 to 12 hits). Dispels all enemies.

Jinx - Winter's Curse: 8 random ailments to all enemies, 70% chance.

Witchcraft Mastery: (TMR required) increase equipment SPR 50% when single wielding. Witchcraft now allows Jinx skills to be used 3 times in 1 turn. Upgrades LB: now does AoE 70% full break and 60% all stats imperil (on max level).

Curse Mastery: increase damage to Hex Eye and Wicked Eye 0.5x, and now deal damage based on positive status effects too.

Her STMR would be Enchanted Robe: 20 DEF, 50 MAG, 50 SPR, with a chance to cause some ailments to enemies when being attacked, and maybe immunity to all regular ailments.

I also thought about some passives, like 50% SPR true doublehand + 50% SPR with a staff (no TMR needed for this one), and a 30% counter (for both physical and magical damage) with something like 10% charm. I tried to think about enhancements too, I wanted to see her breaks and imperils go up to 65% or similar.

I know that it might be too late to make it happen for her, since Christmas is just a couple weeks from now, but still, thought I should share the idea. Thoughts?