Partner with Cazur, Ruthless Stalker (When this creature enters, target player may put Cazur into their hand from their library, then shuffle.) Ukkima can't be blocked. When Ukkima leaves the battlefield, it deals X damage to target player and you gain X life, where X is its power.

Imprint — When this Equipment enters, you may exile an instant card from your hand. Whenever equipped creature deals combat damage to a player, you may copy the exiled card. If you do, you may cast the copy without paying its mana cost. Equip {4}

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.