Loki Prime, The Betrayer

Ward — Pay 3 life.

Decoy — If a creature with toughness 3 or less died during your turn, return it to the battlefield under your control as a 2/2 Black artifact creature named Decoy with "when this creature dies, exile it".

Switch Teleport — Whenever Loki is blocked, you
may exchange it's toughness with target creature until end of turn.