Mana Vault [Secret Lair Drop Series] Psychic [x2] You may put a land

You may put a land card from among them into your hand

and it's returned from the battlefield to its owner's hand at the beginning of the next end step

x1] [When Attacking] If you have 4 or more Life cards

Flashback {2}{U} (You may cast this card from your graveyard for its flashback cost

Mana Vault [Secret Lair Drop Series] Psychic [x2] You may put a landSet: Secret Lair Drop Series Type: Artifact Rarity: Mythic 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}.