Mana Vault [Fourth Edition] Two-Headed Giant Tournament you may pay 2 life

you may pay 2 life

Set: Alpha Edition Type: Enchantment Rarity: Common Cost: {1}{W} {1}: The next time a green source of your choice would deal damage to you this turn

Set: Betrayers of Kamigawa Type: Instant — Arcane Rarity: Rare Cost: {X}{U}{U} You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost

They become 5/5 Elemental creatures with flying and haste until end of turn

Set: Prophecy Type: Enchantment Rarity: Common Cost: {2}{U} Whenever an opponent casts a spell

Mana Vault [Fourth Edition] Two-Headed Giant Tournament you may pay 2 lifeSet: Fourth Edition Type: Artifact Rarity: 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}.