Vow of Flight

Pumping a creature you don't own is a blunder in a duel and a negotiating tool at a multiplayer table, and this Aura exists entirely to exploit that gap. The +2/+2 and flying are the carrot: you hand a tablemate a stronger flier, and they're genuinely glad to have it. The third clause is the actual mechanism. Because the buffed creature can no longer swing back at your life total or your planeswalkers, every point of stats you just gave away is fenced off from you and pointed somewhere else. The same group-hug logic runs through a whole cycle built on this trick, where generosity becomes self-interest the instant there are three other players for the threat to menace. The design is a non-aggression pact disguised as a gift. What it can't do is enforce the deal: you spend mana and a card to improve a board you don't control, and the moment your attention drifts the owner can redirect the creature or a removal spell can wipe out your investment. Cast at sorcery speed, it's a proactive read on the shape of the table, not a reactive combat trick; you're committing to a political wager before combat ever happens. What you're buying is influence, and influence is never a guarantee.