Yahenni, Undying Partisan

Whenever this creature attacks, you get EE (two energy counters). Pay EE: Exile this creature, then return it to the battlefield under its owner's control.

Revolt — At the beginning of your end step, if a permanent left the battlefield under your control this turn, put a unity counter on this enchantment. Creatures you control get +1/+1 for each unity counter on this enchantment.

When this enchantment enters, exile all artifacts your opponents control until this enchantment leaves the battlefield.

Flying If you would lose the game, instead exile this creature and your life total becomes equal to your starting life total.

Double strike Revolt — At the beginning of your end step, if a permanent left the battlefield under your control this turn, put a +1/+1 counter on this creature.

Whenever you cast an Aura, Equipment, or Vehicle spell, draw a card.

Whenever you cast an Aura, Equipment, or Vehicle spell, draw a card.

Create three 1/1 colorless Servo artifact creature tokens. You may cast a spell with mana value 3 or less from your hand without paying its mana cost.