Dragon Tyrant is a rare Creature — Dragon card from Scourge (SCG), collector number 88. Current market price: $1.69 (foil $37.29), TCGplayer market prices via Scryfall.
Flying, trample Double strike (This creature deals both first-strike and regular combat damage.) At the beginning of your upkeep, sacrifice this creature unless you pay {R}{R}{R}{R}. {R}: This creature gets +1/+0 until end of turn.