Presence of Gond

The Aura grants a tap ability to whatever wears it, which means the host's untap step is the throttle: one Elf Warrior per turn cycle, attrition that wins long games by accumulation rather than tempo. The first friction is that the granted ability competes with anything the creature could already do by tapping; a mana dork or a creature with its own tap ability still only gets one tap per turn, so a body whose tap was idle anyway makes the cleanest home. Vigilance dodges the timing question, letting the enchanted creature swing and still spit out a token. The crucial detail is that the ability lives on the creature, not on the Aura, so the once-per-turn rate is really a once-per-untap rate: anything that untaps the host repeatedly turns a modest token-maker into an engine, and a source of free, repeatable untaps sends the count vertical until the loop ends with an arbitrarily large board of 1/1s before the turn passes. The downside is structural to the form: this is a two-for-one waiting on a removal spell, with nothing gained if the creature dies in response to the Aura resolving. That split personality, a fair grinder when the host is a leftover tap and a combo piece when the host can be untapped at will, is what has kept the design relevant. The whole proposition is borrowed from the body underneath; the question is only how cheaply you can untap it.