Imperial Seal [Double Masters 2022] Arthurian Legends Set: March of the Machine:

Set: March of the Machine: The Aftermath Type: Enchantment Rarity: Rare Cost: {U} Activated abilities of creatures you control cost up to {2} less to activate

'if you'll believe in me

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

choose Mirran or Phyrexian

Other Knight creatures you control get +1/+1 and have indestructible

Imperial Seal [Double Masters 2022] Arthurian Legends Set: March of the Machine:Set: Double Masters 2022 Type: Sorcery Rarity: Mythic Cost: {B} Search your library for a card, then shuffle and put that card on top. You lose 2 life. "Your presence at the palace this evening is required." Letter from Queen Marchesa