Aura of Dominion

A repeatable vigilance engine, sold without the vigilance keyword. Tapping an untapped creature to untap the enchanted one means the bearer can attack and still hold up a blocker, attack again in a turn cycle that grants an extra combat, or simply stand back up after being tapped to crew, tap for mana, or activate something. The cost is structural rather than steep: a generic mana and a body that has to be untapped and uncommitted when you pay, which quietly competes with everything else you might want that creature doing. The rate sits at two mana precisely because that opportunity cost does so much of the limiting. It rewards a board wide enough to spare a tapper each time, and it punishes a deck that wants every creature swinging together. As an Aura it also carries the genre's standing risk: kill the enchanted creature in response and the enchantment falls off for nothing, so the value it generates has to outrun a single removal spell. The design belongs to a long line of untap effects that turn a creature into a flexible, reusable resource, the same axis Seedborn Muse works at the macro scale; this version keeps the loop local, manual, and paid for one body at a time.