Mana Vault [International Collectors’ Edition] RC11 Should I attack my opponent’s

Should I attack my opponent’s Base or their Authority

tap all lands that player controls

Players can't cast spells or play lands with a name originally printed in the Arabian Nights expansion

Set: Diamond & Pearl: Base Set Type: Grass Rarity: Common Retreat cost: Colorless

Set: Gateway 2007 Type: Artifact Rarity: Rare Cost: {2} {T}: Add {C}

Mana Vault [International Collectors’ Edition] RC11 Should I attack my opponent’sSet: International 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}.