The Irencrag is a rare Legendary Artifact card from Wilds of Eldraine (WOE), collector number 368. Current market price: $1.48 (foil $1.53), TCGplayer market prices via Scryfall.
{T}: Add {C}. Whenever a legendary creature you control enters, you may have The Irencrag become a legendary Equipment artifact named Everflame, Heroes' Legacy. If you do, it gains equip {3} and "Equipped creature gets +3/+3" and loses all other abilities.