As this creature
enters the battlefieldShort for entering the battlefield. (CR 700.15), choose cosplay or science.
• Cosplay — Whenever you
castTo cast a spell is to take it from the zone it’s in (usually the hand), put it on the stack, and pay its costs, so that it will eventually resolve and have its effect. A player may cast a spell if they have priority. See rule 601, “Casting Spells.”
To cast a card is to cast it as a spell. (CR 701.5) 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
castTo cast a spell is to take it from the zone it’s in (usually the hand), put it on the stack, and pay its costs, so that it will eventually resolve and have its effect. A player may cast a spell if they have priority. See rule 601, “Casting Spells.”
To cast a card is to cast it as a spell. (CR 701.5) an instant or sorcery spell, this creature deals 2 damage to each opponent.