Kaelvir, the Spiritbound

Vigilance, lifelink.

Whenever a creature you control dies, you gain 2 life.

{1}{b/g}{b/g}: Return a target creature from your graveyard to the battlefield. It becomes a Spirit in addition to its other types.

{w/b}{w/b}, Sacrifice a creature you control: Target permanent you control gains hexproof until end of turn.

"I will die for you again if you wish it."