Mana Vault [Fourth Edition (Foreign White Border)] Azra Assassin but his answer is always

but his answer is always "no

When Kinsbaile Borderguard dies

Set: World Magic Cup Qualifiers Type: Legendary Creature — Spirit Cleric Rarity: Mythic Cost: {1}{W}{U} Hexproof (This creature can't be the target of spells or abilities your opponents control

obeying the commands of an unseen master

Set: Collectors' Edition Type: Artifact Rarity: Rare Cost: {0} {T}: Add {B}

Mana Vault [Fourth Edition (Foreign White Border)] Azra Assassin but his answer is alwaysSet: Fourth Edition (Foreign White Border) Rarity: Rare Mana Vault does not untap during your untap phase. If it remains tapped during your upkeep, Mana Vault deals 1 damage to you. 4: Untap Mana Vault. Use this ability only during your upkeep. T: Add three colorless mana to your mana pool. Play these additions as interrupts.