Crashing Centaur

{G}, Discard a card: This creature gains trample until end of turn. Threshold — As long as there are seven or more cards in your graveyard, this creature gets +2/+2 and has shroud. (It can't be the target of spells or abilities.)

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ooc6khtmjpb1h5rfmmbc8.