Chandra's Pyreling is a uncommon Creature — Elemental Lizard card from Core Set 2021 (M21), collector number 304. Current market price: $0.23 (foil $0.20), TCGplayer market prices via Scryfall.
Whenever a source you control deals noncombat damage to an opponent, this creature gets +1/+0 and gains double strike until end of turn. (It deals both first-strike and regular combat damage.)