Felhide Spiritbinder

The clever trick here is keying a clone engine off a triggered ability that fires on untapping. Inspired reads its trigger every time the creature becomes untapped, so the default loop (attack, untap during your untap step, pay the when the trigger resolves) hands you one copy a turn at effective sorcery speed. Find an artificial untap effect and the math changes: each extra untap is another temporary copy of any creature you choose, since the ability says "another target creature" and is perfectly content pointing at your own board. The token arrives with haste, ready to swing on your turn before it vanishes at the next end step. Time the untap on an opponent's turn and the copy still appears, but it cannot attack out of phase; it can only block before exile, which is its own kind of trick. The token also enters as an enchantment in addition to its other types, a wrinkle that opens it both to enchantment-matters payoffs and to removal that creatures normally dodge. The 3/4 body is the honest half of the bargain: a frame that attacks willingly and survives the swings that trigger it, rather than a fragile engine that dies before it pays out. What keeps the package fair is that the copy is fleeting (one combat, then gone) and you get exactly one untap a turn unless you build for more.