pokémon: surging sparks booster box Pokemon this set is designed to energize the competitive scene A Surging Sparks Booster Bundle

But then I realized that Mishra, Claimed by Gix is still in Standard

While its escape cost of four mana and five exiled cards from its controller's graveyard allows its 6/6 body to be used in combat, even if it is immediately sacrificed, when it enters the battlefield or attacks, each opponent discards a card they lose three life if they can't

Unfinity also has another pair of legal squirrels (Xenosquirrels and Squirrel Squatters)

Starscream, Power Hungry / Starscream, Seeker Leader Starscream, Power Hungry ties into the monarch mechanic, draining opponents whenever you draw while you wear the crown

it won't be 5/5