Damping Matrix [Mirrodin] Goblin Rogue Shaman When Bookwurm enters the battlefield

When Bookwurm enters the battlefield

−1: Exile target nonland permanent with mana value 1 or less

Set: Jumpstart 2022 Type: Creature — Human Rogue Artificer Rarity: Uncommon Cost: {2}{U}{U} When Whirler Rogue enters the battlefield

Have you done anything

Set: The List Type: Legendary Creature — Human Shaman Rarity: Mythic Cost: {3}{R} Partner with Shabraz

Damping Matrix [Mirrodin] Goblin Rogue Shaman When Bookwurm enters the battlefieldSet: Mirrodin Type: Artifact Rarity: Rare Cost: {3} Activated abilities of artifacts and creatures can't be activated unless they're mana abilities. The priests tried cursing it. The mages tried dispelling it. In the end, they all obeyed it.