[Standard] Looking for feedback on a temur black list

http://tappedout.net/mtg-decks/22-02-16-temur-black/

Card choices as follows:

• Rattle Claw Mystic: Ramps us into turn 3 four drop or a hasty knuckblade. Not a dead draw late game due to morph synergy with Deathmist.

• Jace. Vryn's Prodigy: Provides a ton of value, can flip as early as turn three, and is a must kill for the opponent. Also fuels delve and puts Deathmist Raptors into our grave.

• Den Protector: Synergizes absurdly well with kolaghan's command and Deathmist, creates a whole lot of recursion and provides us with options.

• Nissa, Vastwood Seer: Again, a must kill three drop that provides a lot of value late in the game and ensures we get a land if needed.

• Savage Knuckleblade: One of the best three drops in the format in my opinion, resilient to removal late in the game, powers through most creatures cast early in the game works very well with Rattleclaw.

• Deathmist Raptor: See Den Protector.

• Kalitas, Traitor of Ghet: Provides a ton of value, blocks most things alright, and provides life gain against aggressive matchups.

• Tasigur, the Golden Fang: A tough to beat 6 that we can cast on turn three with the correct hand. Provides a ton of value in the late game with potential to fuel delve, and fill our grave with stuff to get back with Den Protectors or K-Command.

• Dragonlord Silumgar: I have been very happy every time I've resolved Silumgar, blocks very well and demands an answer.

• Dragonlord Atarka: Due to how gummed up a lot of the midrange matchup boards get, Atarka provides a way to ping off a lot of smaller bodies while being a huge threat.

• Collected Company: New inclusion to the deck, grabs a lot of high value creatures, still not sure if it's correct.

• Fiery Impulse: Great 1 mana removal that kills a vast majority of 1-2 drops our opponent may be playing.

• Murderous Cut: Fantastic single target removal, only competes with Tasigur for delve so it's frequently 1 black kill target creature.

• Kolaghan's Command: Does exactly what this deck wants to do, see Den Protector.

• Kiora, Master of the Depths: Fuels delve while giving us good options another one of those threats that needs to be dealt with.

Side Board

• Dispel: Does very well in a lot of matchups, counters most things that our opponents want to be doing such as, casting rally, company, or a removal spell.

• Roast: Kills a lot of the bigger bodies in the format.

• Disdainful Stroke: Stroke provides a way to hose a control deck when they try to resolve any dragonlord, it also beats company and rally.

• Painful Truths: Good way to reload in control or midrange matchups.

• Complete Disregard: More early removal for aggressive matchups.

• Radiant Flames: Great answer to decks that like to flood the board with smaller creatures.

• Kolaghan's Command: Great against control, provides a lot of value see above.

• Surrak, Dragonclaw: Great one of against control.

• Ob Nixilis Reignited: Value against control and midrange, draws cards, clears the board some what.

Feed back is welcome, thanks for reading!

Edit: Included full decklist