Barbarian Ring (Foil) (PD2) from Premium Deck Series: Fire and Lightning, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Foil
• Artist: John Avon
• Card Text:
  T: Add R to your mana pool. Barbarian Ring deals 1 damage to you.
  Threshold — R, T, Sacrifice Barbarian Ring: Barbarian Ring deals 2 damage to target creature or player. Activate this ability only if seven or more cards are in your graveyard.