Grafted Wargear states: Equipped creature gets +3/+2 and whenever Grafted Wargear becomes unattached from a creature, sacrifice that creature.
If I have Grafted Wargear attached to a 1/1 creature and attach it to another creature in order to get an easy die trigger, will that first creature die as a 4/3 or will it die with its base power and toughness?
Very important distinction for my Shirei, Shizo's Caretaker deck.
It would die without the equipment buff. In your case it would die as a 1/1 and trigger Shirei, Shizo's Caretaker.
As soon as you unattach the Wargear, the creature it had equipped loses the power/toughness bonus. The ability that forces you to sacrifice the creature is a triggered ability, where unattaching the equipment is the trigger for that ability in the first place. A triggered ability goes on the stack and can be responded to much like a spell, so by the time it does resolve and you have to actually perform the sacrifice, the P/T bonus is long gone.
113.3c Triggered abilities have a trigger condition and an effect. They are written as “[Trigger condition], [effect],” and include (and usually begin with) the word “when,” “whenever,” or “at.” Whenever the trigger event occurs, the ability is put on the stack the next time a player would receive priority and stays there until it’s countered, it resolves, or it otherwise leaves the stack. See rule 603, “Handling Triggered Abilities.”
