Razorkin Hordecaller

The trigger is worded to reward greed. It reads "whenever you attack," not "whenever this creature attacks," which detaches the Gremlin from Razorkin Hordecaller's own combat entirely: the moment you declare one or more attackers, a 1/1 arrives, whether or not this 4/4 is among them. It can hold back on blocking duty and still spit out fodder as long as something else is turning sideways, so the token stream carries no risk on the source. Decks that split into multiple combat phases fire the trigger once per declaration, not once per turn, which is where the card stops being a beater and becomes an engine. That flexibility is also its awkwardness: a haste body in a token deck, a token maker in a beatdown deck, a fodder factory in a value shell, without fully committing to any of them. The five-mana ask is the premium you pay for that recurring stream; a haste-carrying 4/4 alone would not justify the cost, and the string of Gremlins is what does. Each new body is fresh input for the things red likes to do with disposable creatures: feed an anthem and push damage, feed a sacrifice outlet and drain, feed a death-trigger engine and grind. Left alone on a board that keeps attacking, it goes wide faster than most creatures at its cost, which is the tell that its ceiling lives in the shell around it, not in the stat line.