Cass, Hand of Vengeance

Enchant creature you control

When this Aura enters, return any number of target Aura and/or Equipment cards from your graveyard to the battlefield attached to enchanted creature.

Enchanted creature gets +1/+1 for each Aura and Equipment attached to it.

Menace

When Neva enters, return target creature or enchantment card from your graveyard to your hand.

Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Neva, then scry 1.

Whenever a creature dies, if an Aura you controlled was attached to it, return target creature card with mana value 2 or less from your graveyard to your hand.

Vigilance

Whenever this creature deals combat damage to a player, return target artifact or enchantment card from your graveyard to the battlefield.

You may exert this creature as it attacks. (It won't untap during your next untap step.)

Whenever you exert a creature, reveal cards from the top of your library until you reveal an Equipment card. Put that card onto the battlefield attached to that creature, then put the rest on the bottom of your library in a random order.

First strike

When Gerrard dies, exile it and return to the battlefield all artifact and creature cards in your graveyard that were put there from the battlefield this turn.