Memory Jar [From the Vault: Relics] BW83 (If your hero would be

(If your hero would be dealt arcane damage

then put the rest on top of their deck in any order

Whenever a Mountain enters the battlefield under your control

Prevent the next X arcane damage that would be dealt to you this turn

and lands you control have indestructible

Memory Jar [From the Vault: Relics] BW83 (If your hero would beSet: From the Vault: Relics Type: Artifact Rarity: Mythic Cost: {5} {T}, Sacrifice Memory Jar: Each player exiles all cards from their hand face down and draws seven cards. At the beginning of the next end step, each player discards their hand and returns to their hand each card they exiled this way.