Undercity Plague [Gatecrash] Fairy[×2] You can only use this

You can only use this effect of "Gaia the Magical Knight" once per turn

Set: Platinum: Arceus Type: Fire Rarity: Promo Retreat cost: Colorless

change the battle position of your monster

Set: Advent Calendar 2018 Card type: Effect Monster Rarity: Super Rare Attack: 1700 Defense: 200 (Quick Effect): You can discard this card

if this card destroyed any monster(s) by battle: You can Special Summon them from the GYs to your field

Undercity Plague [Gatecrash] Fairy[×2] You can only use thisSet: Gatecrash Type: Sorcery Rarity: Rare Cost: {4}{B}{B} Target player loses 1 life, discards a card, then sacrifices a permanent. Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)