Omnath, Locus of the Roil

Whenever another creature you control enters, each opponent loses 1 life.

Flying When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature.

Whenever you discard a card, exile that card from your graveyard. 2, T: Draw a card, then discard a card. 4, T, Sacrifice this artifact: Return all cards exiled with this artifact to their owner's hand.

At the beginning of your upkeep, discard a card.

Vigilance When this creature enters, destroy up to one target nonland permanent. Its controller creates a 3/3 colorless Golem artifact creature token. When this creature dies, return target artifact or enchantment card from your graveyard to your hand.

Exile target creature an opponent controls with mana value 2 or less and all other creatures that player controls with the same name as that creature. Then that player reveals their hand and exiles all cards with that name from their hand and graveyard.

Hexproof This land enters tapped. When this land enters, sacrifice two lands. T: Add three mana of any one color.

Flying When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature.