Ormacar, Relic Wraith is a mythic Legendary Creature — Elf Wraith card from 2023 Heroes of the Realm (PH23), collector number 2.
Vigilance, menace, lifelink Precious (You can have two commanders if the other one is a legendary noncreature artifact.) As long as you control your Precious, Ormacar gets +X/+X, where X is the mana value of your Precious.