Fia, the Deathbed Companion

At the beginning of your upkeep, you may
pay {2}. If you do, you lose 1 life create a 2/2
white and black tarnished knight Creature Token with Vigilance.
Whenever a creature dies, put a Warmth Counter on Fia, the Deathbed Companion. Then, you may remove 5 Warmth Counters from it to return target creature from your graveyard to your hand.