Felothar, Dawn of the Abzan is a rare Legendary Creature — Human Warrior card from Tarkir: Dragonstorm Promos (PTDM), collector number 184p. Current market price: $0.37 (foil $0.23), TCGplayer market prices via Scryfall.
Trample Whenever Felothar enters or attacks, you may sacrifice a nonland permanent. When you do, put a +1/+1 counter on each creature you control.