Ulamog, the Infinite Gyre (Borderless) Foundations put two +1/+1 counters on

put two +1/+1 counters on it instead

each opponent sacrifices a nontoken creature or planeswalker of their choice

This spell costs {7} less to cast if it targets a spell or ability that targets a creature you control with power 7 or greater

Discard a card with mana value X: Counter target spell with mana value X

When Anti-Venom enters

Ulamog, the Infinite Gyre (Borderless) Foundations put two +1/+1 counters onWhen you cast this spell, destroy target permanent. Indestructible Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents of their choice.) When Ulamog is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.