Tyvar Kell is a mythic Legendary Planeswalker — Tyvar card from Kaldheim (KHM), collector number 287. Current market price: $4.86 (foil $9.64), TCGplayer market prices via Scryfall.
Elves you control have "{T}: Add {B}." +1: Put a +1/+1 counter on up to one target Elf. Untap it. It gains deathtouch until end of turn. 0: Create a 1/1 green Elf Warrior creature token. −6: You get an emblem with "Whenever you cast an Elf spell, it gains haste until end of turn and you draw two cards."