Yargle and Multani

Ghoulcaller Gisa

{B}, {T}, Sacrifice another creature: Create X 2/2 black Zombie creature tokens, where X is the sacrificed creature's power.

When Eternal Witness enters, you may return target card from your graveyard to your hand.

Repeat the following process X times. Each opponent loses 3 life unless that player sacrifices a nonland permanent or discards a card.

Jungle Hollow enters tapped.
When Jungle Hollow enters, you gain 1 life.
{T}: Add {B} or {G}.

Until end of turn, double target creature's power X times.

{T}: Add {C}.
{T}: Add {B} or {G}. Activate only if you control a Swamp.