Traitorous Instinct

The +2/+0 is the tell that this Threaten variant is built to kill, not just to steal. The base effect (borrow a creature, untap it, give it haste) is the standard sorcery-speed Act of Treason template, where the sacrifice outlet is the usual partner: take the blocker, swing, eat it. The power boost changes the math at the front end of that plan. A creature you borrow is going to attack into a board it was just defending, and two extra points of damage either pushes a trade you would have lost into one you win or turns a chump-blocked attacker into a lethal one. It also widens the pool of creatures worth stealing downward: a small utility body that would barely dent a life total becomes a real clock for one turn. The catch is the catch of every Threaten effect: you are renting, not buying. End of turn the creature goes home, fully healed, so the whole package only converts to permanent advantage if you have a way to keep what you borrowed (an aristocrats outlet) or if the +2/+0 swing already closed the game. The buff is the design lever that tilts the rental toward a finishing strike rather than a value play, which is why this version reads as a combat trick wearing a steal spell's clothes.