Elspeth, Undaunted Hero is a mythic Legendary Planeswalker — Elspeth card from Theros Beyond Death (THB), collector number 270. Current market price: $0.45 (foil $0.50), TCGplayer market prices via Scryfall.
+2: Put a +1/+1 counter on each of up to two target creatures. −2: Search your library and/or graveyard for a card named Sunlit Hoplite and put it onto the battlefield. If you search your library this way, shuffle. −8: Until end of turn, creatures you control gain flying and get +X/+X, where X is your devotion to white.