Void Attendant

Green rarely gets to trade with the exile zone, which is exactly the niche this creature was built to fill. The activation ( plus fuel) reaches into whatever an opponent has parked in exile, drops one of those cards into their graveyard, and hands you a 1/1 Eldrazi Scion that already sacrifices for colorless mana. That fuel condition governs everything: with nothing of the opponent's sitting in exile, the ability is dead, so the card idles until the deck's ingest half supplies a target. It reads as one voice in a two-part exchange, the payoff side of a loop where an ingester banishes and the processor cashes out, and the green side of a deck almost never generates that fuel alone. Devoid strips the color off despite the green pip, a deliberate flourish of the era's Eldrazi design that wanted these creatures to register as a single alien faction no matter what mana paid for them. The 2/3 body earns nothing on its own; every ounce of value here is leased against a shared-exile economy the deck has to be constructed to run. Where the token generation makes it notable is the mana it feeds back: each Scion converts to colorless ramp, so a functioning loop grinds the opponent's exiled cards into both a growing board and acceleration, the one thing green wanted from the arrangement in the first place.