Scaled Hulk

A payoff built for a deck that wanted to chain its spells, not just cast them. The +2/+2 fires off every Spirit you play and every Arcane spell, the splice-and-tribal engine that block's Spirit decks were assembled around, so a single turn stringing two or three of those together can swing a fragile 4/4 into a genuine threat mid-combat. The catch is in the wording: the buff lasts only until end of turn and stacks only while you keep casting, so the body deflates the moment the spell flow stops. That makes it a momentum creature rather than a static one. It rewards a hand already overflowing with Spirits and Arcane cards and does nothing for a deck that merely contains a few. The six-mana entry point is the real tax. By the turn you can deploy it and still have spells left to feed it, you are deep enough into the game that a 4/4 anchor needs the tribe's tempo fully intact to matter. It reads as a top-end reward for a synergy deck operating at full tilt: unremarkable in isolation, a finisher only when the rest of the engine is humming around it.