Mana Vault [Foreign Black Border] Phyrexian Golem the stone induced acute listlessness

the stone induced acute listlessness in several researchers

Reveal Infernal Spawn of Evil from your hand

sacrifice it unless you exile another Merfolk you control

{1}: Morphling gets +1/-1 until end of turn

Set: Time Spiral Type: Artifact Creature — Construct Rarity: Rare Cost: {5} Indestructible

Mana Vault [Foreign Black Border] Phyrexian Golem the stone induced acute listlessnessSet: Foreign Black Border Type: Artifact Rare Cost: {1} Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.