Sigil of the Nayan Gods

Enchant creature Enchanted creature gets +1/+1 for each creature you control. Cycling {G/W} ({G/W}, Discard this card: Draw a card.)

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oj5oedugppb1hnn4boobu.