Gastal Thrillseeker is a uncommon Creature — Lizard Berserker card from Aetherdrift (DFT), collector number 205. Current market price: $0.24 (foil $0.33), TCGplayer market prices via Scryfall.
Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.) When this creature enters, it deals 1 damage to target opponent and you gain 1 life. Max speed — This creature has deathtouch and haste.