Flame Blitz is a uncommon Enchantment card from Modern Horizons 2 (MH2), collector number 124. Current market price: $0.22 (foil $0.35), TCGplayer market prices via Scryfall.
At the beginning of your end step, this enchantment deals 5 damage to each planeswalker. Cycling {2} ({2}, Discard this card: Draw a card.)