Decoy deploy

A type of revenge kill in a multiplayer video game where one is killed by another, but said person who was killed respawns right next to their killer, who then proceeds to kill them.

The name comes from a tool on Roblox, which has the same name, which allows the player with the tool equipped to spawn a duplicate of their avatar to trick enemies into killing the duplicate instead of you.

Person A kills Person B in an online game, then Person A says:
"ez"

Person B, luckily, spawns next to Person A completely at random and kills him, Person B then says:
"Decoy deploy."