Marisi, Breaker of the Coil [The List] Dragon Sliver Magecraft — Whenever you cast

Magecraft — Whenever you cast or copy an instant or sorcery spell

but I can sense some kind of comparable power in this droplet of ancient amber

Terror of the Peaks deals damage equal to that creature's power to any target

If both targets are still legal as this ability resolves

each player may draw a card

Marisi, Breaker of the Coil [The List] Dragon Sliver Magecraft — Whenever you castSet: The List Type: Legendary Creature Cat Warrior Rarity: Mythic Cost: {1}{R}{G}{W} Your opponents can't cast spells during combat. Whenever a creature you control deals combat damage to a player, goad each creature that player controls (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.) "Cast off the law! Awaken your rage!"