Barbarian Ring 313/350 (The List Reprints)

{T}: Add {R}. This land deals 1 damage to you. Threshold — {R}, {T}, Sacrifice this land: It deals 2 damage to any target. Activate only if there are seven or more cards in your graveyard.

NM - $1.00
LP - $0.80
MP - $0.70
HP - $0.70
DMG - $0.70