Arni Metalbrow

First strike

Whenever Alesha attacks, you may pay . If you do, return target creature card with power 2 or less from your graveyard to the battlefield tapped and attacking.

Battalion — Whenever Paladin Elizabeth Taggerdy and at least two other creatures attack, draw a card, then you may put a creature card with mana value X or less from your hand onto the battlefield tapped and attacking, where X is Paladin Elizabeth Taggerdy's power.

Haste

Whenever this creature attacks, you may exile another target attacking creature you control. If you do, reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield tapped and attacking and the rest on the bottom of your library in a random order.

Flying

Whenever Kaalia attacks an opponent, you may put an Angel, Demon, or Dragon creature card from your hand onto the battlefield tapped and attacking that opponent.

First strike

Whenever Alesha attacks, put a +1/+1 counter on it.

Raid — At the beginning of your end step, if you attacked this turn, return target creature card with mana value less than or equal to Alesha's power from your graveyard to the battlefield.

Flying

Whenever The Vast Scrier attacks a player, you may put a Soldier, Warrior, or Wizard creature card from your hand onto the battlefield tapped and attacking that player. If it has any "Whenever this creature attacks" triggers, those trigger. If you don't put a card onto the battlefield this way, scry 2.