Gift of the Deity

Enchant creature As long as enchanted creature is black, it gets +1/+1 and has deathtouch. (Any amount of damage it deals to a creature is enough to destroy that creature.) As long as enchanted creature is green, it gets +1/+1 and all creatures able to block it do so.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6opd0cin2vpb1hwbjwf25b.