Otharri, Suns' Glory is a mythic Legendary Creature — Phoenix card from Phyrexia: All Will Be One Commander (ONC), collector number 3. Current market price: $5.46 (foil $6.62), TCGplayer market prices via Scryfall.
Flying, lifelink, haste Whenever Otharri attacks, you get an experience counter. Then create a 2/2 red Rebel creature token that's tapped and attacking for each experience counter you have. {2}{R}{W}, Tap an untapped Rebel you control: Return this card from your graveyard to the battlefield tapped.