Colossal Plow (KHM) from Kaldheim, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Joe Slucher
• Card Text:
  Whenever Colossal Plow attacks, add WWW and you gain 3 life. Until end of turn, you don't lose mana as steps and phases end.
  Crew 6 (Tap any number of creatures you control with total power 6 or more: This Vehicle becomes an artifact creature until end of turn.)