Nick Fury, Agent of S.H.I.E.L.D.

The five-color engine bolted onto a fragile white one-drop is the whole design problem here, and the pricing is where it gets clever. Power-up asks for one mana of every color, a rainbow tax steep enough to look unpayable in a white shell until the parenthetical does its work: fire it the turn Fury lands and the activation sheds his white pip, leaving a demand for blue, black, red, and green. Even discounted to four pips, though, there is no early turn where you deploy him and immediately dig, so this is a payoff you hold for a developed manabase rather than an on-curve trick. What the activation actually buys is a look seven deep that cheats a Hero, Equipment, or Vehicle onto the battlefield, with a transform option folded in for double-faced targets: a tutor and a free deployment stapled into one shot. The two +1/+1 counters ride along with that same activation, so he sits as a 2/1 through the entire wait and only becomes a 4/3 at the instant the ability resolves; the growth is the reward for pulling the trigger, not protection while you set up. Power-up spends itself once, so this is a single decisive detonation rather than a repeatable loop. The deckbuilding question it poses is twofold: what sits on top when you finally fire, and how much fixing you run to guarantee you can pay five colors to fire it at all.