Mana Vault [Double Masters 2022] 004 then you may put a

then you may put a permanent card from your hand onto the battlefield

Set: Sword & Shield: Crown Zenith Type: Dragon Rarity: Holo Rare Retreat cost: 1

Set: Arcane Rising Edition: 1st Edition Finish: Cold Foil Type: Equipment Subtype: Head Rarity: Legendary Class: Ranger Once per Turn Action - Turn a face down card in your arsenal face up: Opt 1

double the number of +1/+1 counters on Primordial Hydra

Set: 30th Anniversary Edition Type: Instant Rarity: Rare Cost: {1}{W}{W} The next time a source of your choice would deal damage to you this turn

Mana Vault [Double Masters 2022] 004 then you may put aSet: Double Masters 2022 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}.