Karstoderm [Darksteel] Instant Set: Tempest Type: Land Rarity:

Set: Tempest Type: Land Rarity: Rare Scabland enters the battlefield tapped

The “Ursarctic” monsters thrive in negative temperatures that use a modified way to Special Summon Synchro Monsters

but from your Graveyard instead

Set: Mercadian Masques Type: Artifact Rarity: Rare Cost: {5} At the beginning of your end step

sacrifice it unless you pay its echo cost

Karstoderm [Darksteel] Instant Set: Tempest Type: Land Rarity:Set: Darksteel Type: Creature Beast Rarity: Uncommon Cost: {2}{G}{G} Karstoderm enters the battlefield with five +1 +1 counters on it. Whenever an artifact enters the battlefield, remove a +1 +1 counter from Karstoderm.