Lord of the Niche World

Flying, Otherworldly(As this creature enters the battlefield, choose a player. This creature has protection from the chosen player. Ignore this effect if there are one or more stigma counters on this creature.)
Whenever Lord of the Niche World deals combat damage to the chosen player, put a stigma counter on it.
Pay 5 life: Remove a stigma counter from Lord of the Niche World.