Berserk [Conspiracy: Take the Crown] XY202 a butterfly flapping its wings

a butterfly flapping its wings is insufficient

Set: Unlimited Edition Type: Enchantment Rarity: Rare Cost: {2}{R} Whenever a player taps a land for mana

000 Type: Legendary Creature — Astartes Warrior Rarity: Mythic Cost: {2}{W}{U}{B} Double strike

Set: Secret Lair Drop Series Type: Creature — Eldrazi Rarity: Mythic Cost: {9} Your opponents can't cast spells with even mana values

Set: Commander 2013 Type: Artifact Rarity: Rare Cost: {3} You may activate abilities of creatures you control as though those creatures had haste

Berserk [Conspiracy: Take the Crown] XY202 a butterfly flapping its wingsSet: Conspiracy: Take the Crown Type: Instant Rarity: Mythic Cost: {G} Cast this spell only before the combat damage step. Target creature gains trample and gets +X +0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.