Nokris, The Exiled

Tithe - Whenever this creature destroys a creature by combat, gain life equal to the difference in power, then all hive creatures you control get +1/+1.

When Noktris, The Exiled enters the battlefield, return target creature card from your graveyard to your hard.

Offerings - At the beginning of your end step,
lose 2 life unless this creature attacked this turn.