Taranika, Akroan Veteran is a rare Legendary Creature — Human Soldier card from Theros Beyond Death Promos (PTHB), collector number 39p. Current market price: $0.29 (foil $0.25), TCGplayer market prices via Scryfall.
Vigilance Whenever Taranika attacks, untap another target creature you control. Until end of turn, that creature has base power and toughness 4/4 and gains indestructible.