Gabriel Angelfire is a rare Legendary Creature — Angel card from Chronicles (CHR), collector number 76. Current market price: $0.52, TCGplayer market prices via Scryfall.
At the beginning of your upkeep, choose flying, first strike, trample, or rampage 3. Gabriel Angelfire gains that ability until your next upkeep. (Whenever a creature with rampage 3 becomes blocked, it gets +3/+3 until end of turn for each creature blocking it beyond the first.)