Flame Blitz (MH2) from Modern Horizons 2, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Colin Boyer
• Card Text:
  At the beginning of your end step, Flame Blitz deals 5 damage to each planeswalker.
  Cycling 2 (2, Discard this card: Draw a card.)