Lotus Petal [Tempest] Serra's Realm Each land with an activated

Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step

if two Goblin Warriors and a Goblin Shaman are on the battlefield

Remove a +1/+1 counter from Walking Ballista: It deals 1 damage to any target

Set: Mirrodin Type: Artifact Rarity: Rare Cost: {X}{X} Chalice of the Void enters the battlefield with X charge counters on it

Sunken Hollow enters the battlefield tapped unless you control two or more basic lands

Lotus Petal [Tempest] Serra's Realm Each land with an activatedSet: Tempest Type: Artifact Rarity: Common Cost: {0} {T}, Sacrifice Lotus Petal: Add one mana of any color. "Hard to imagine," mused Hanna, stroking the petal, "such a lovely flower inspiring such greed."