Meloetta EX (RC11/RC25) [Black & White: Legendary Treasures] 72 You can only use this

You can only use this effect of "Ghost Mourner & Moonlit Chill" once per turn

If you Tribute Summon a monster that includes "Ancient Gear" in its card name

Set: OTS Tournament Pack 12 Card type: Counter Trap Rarity: Ultimate Rare When a monster would be Summoned

Set: Raging Tempest Card type: Fusion/Effect Monster Rarity: Secret Rare Attack: 3000 Defense: 2000 1 "Pendulum Dragon" monster + 1 Warrior-Type monster When this card is Fusion Summoned: You can change the ATK of all face-up monsters your opponent currently controls to 0

or Summoned monster

Meloetta EX (RC11/RC25) [Black & White: Legendary Treasures] 72 You can only use thisSet: Black & White: Legendary Treasures Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless