Slab Hammer (BFZ) from Battle for Zendikar, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Joseph Meehan
• Card Text:
  Whenever equipped creature attacks, you may return a land you control to its owner's hand. If you do, the creature gets +2/+2 until end of turn.
  Equip 2