The Marvelous Scientist

As this creature enters the battlefield, choose cosplay or science. • Cosplay — Whenever you cast a creature or planeswalker spell, this creature's base power and toughness each become equal to that spell's mana value until end of turn. • Science — Whenever you cast an instant or sorcery spell, this creature deals 2

damage to each opponent.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6od8649951pb1hsg0aub0j.