April O'Neil, Live on the Scene [Teenage Mutant Ninja Turtles Commander] Noble Merfolk Whenever an artifact enters the

Whenever an artifact enters the battlefield under your control

" —Tajic

a legendary 2/1 black Skeleton creature token with "This creature can't block" and "When this creature leaves the battlefield

Set: Commander 2021 Type: Legendary Creature — Elemental Octopus Rarity: Rare Cost: {8}{U}{U} This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard

or non-Aura enchantment

April O'Neil, Live on the Scene [Teenage Mutant Ninja Turtles Commander] Noble Merfolk Whenever an artifact enters theSet: Teenage Mutant Ninja Turtles Commander Type: Legendary Creature Human Detective Rarity: Mythic Cost: {1}{U} Whenever a Mutant, Ninja, or Turtle you control enters, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") PartnerCharacter select This is great! I must really be onto something hot if they're trying to kill me!