Trusty Retriever [Jumpstart] Condition:Moderately Played That creature is black and

That creature is black and is a Nightmare in addition to its other creature types

) When Skullmulcher enters the battlefield

Set: Commander 2020 Type: Instant — Trap Rarity: Common Cost: {3}{U}{U} If an opponent had two or more creatures enter the battlefield under their control this turn

3 damage to another target creature

It's so infinite that its flavor text says

Trusty Retriever [Jumpstart] Condition:Moderately Played That creature is black andSet: Jumpstart Type: Creature Dog Cost: null When Trusty Retriever enters the battlefield, choose one Put a +1 +1 counter on Trusty Retriever. Return target artifact or enchantment card from your graveyard to your hand. Wipe away the slobber and its as good as new, give or take a few bite marks.