Ghoultree

Creature — Zombie Treefolk

This spell costs less to cast for each creature card in your graveyard.

Ghoultree’s ability can’t reduce the total cost to cast the spell below {G}.
Once you begin to cast Ghoultree, no player may take actions until you’re done. Notably, opponents can’t try to remove creature cards from your graveyard to change Ghoultree’s cost.