Walking Ballista [Double Masters] Mirrodin Besieged where X is the total

where X is the total power of creatures you control

{T}: Untap target Griffin

Set: Ravnica Allegiance Type: Land — Plains Swamp Rarity: Rare ({T}: Add {W} or {B}

Set: International Collectors’ Edition Type: Creature — Elemental Rarity: Rare Cost: {2}{G}{G}{G}{G} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

The elves of Wilt-Leaf Wood continually expand the palisade surrounding the sanctuary

Walking Ballista [Double Masters] Mirrodin Besieged where X is the totalSet: Double Masters Type: Artifact Creature Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1 +1 counters on it. {4}: Put a +1 +1 counter on Walking Ballista. Remove a +1 +1 counter from Walking Ballista: It deals 1 damage to any target.