Luminarch Ascension is a rare Enchantment card from Masters 25 (A25), collector number 23. Current market price: $16.17 (foil $31.17), TCGplayer market prices via Scryfall.
At the beginning of each opponent's end step, if you didn't lose life this turn, you may put a quest counter on this enchantment. (Damage causes loss of life.) {1}{W}: Create a 4/4 white Angel creature token with flying. Activate only if this enchantment has four or more quest counters on it.