Deathlace [Alpha Edition] Demon Dog Spend this mana only to

Spend this mana only to activate abilities of artifacts

Set: Conspiracy: Take the Crown Type: Artifact Creature — Phyrexian Horror Rarity: Rare Cost: {5} Psychosis Crawler's power and toughness are each equal to the number of cards in your hand

Set: Classic Sixth Edition Type: Creature — Serpent Rarity: Common Cost: {4}{U}{U} Sea Monster can't attack unless defending player controls an Island

though millennia have passed since he separated the eye from its body

Set: Magic Origins Type: Creature — Giant Soldier Rarity: Uncommon Cost: {5}{W} Vigilance (Attacking doesn't cause this creature to tap

Deathlace [Alpha Edition] Demon Dog Spend this mana only toSet: Alpha Edition Type: Instant Rarity: Rare Cost: {B} Target spell or permanent becomes black. (Mana symbols on that permanent remain unchanged.)