Mana Vault [Collectors' Edition] SV121 that "Crusadia" monster is unaffected

that "Crusadia" monster is unaffected by card effects this turn

also any damage you take for the rest of this turn is halved

Set: Commander 2011 Type: Creature — Spirit Avatar Rarity: Rare Cost: {U/R}{U/R}{U/R}{U/R}{U/R} Flying

Set: Structure Deck: Warriors' Strike Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 Equip only to a Gemini Monster

Set: World Championship Decks 2000 Type: Creature — Elf Druid Rarity: Common Cost: {1}{G} {T}: Add {G} for each Elf on the battlefield

Mana Vault [Collectors' Edition] SV121 that "Crusadia" monster is unaffectedSet: Collectors' 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}.