Albedo, Guardian Overseer

As long as you control another Legendary creature, Albedo has hexproof and indestructible.
Whenever an opponent attacks you or a planeswalker you control with one or more creatures, create a 1/1 white and black Demon Soldier token with lifelink.
Whenever a creature you control dies, Albedo deals 2 damage to any target and you gain 2 life.