Jester's Mask [Ice Age] SM172 it loses ATK equal to

it loses ATK equal to that battle damage

you can send 1 Spell or Trap card you control to the Graveyard to change the target to this card

Set: XY: Ancient Origins Type: Fire Rarity: Promo Retreat cost: 2

Set: EX: Crystal Guardians Type: Water Rarity: Promo Retreat cost: Colorless

Jester's Mask [Ice Age] SM172 it loses ATK equal toSet: Ice Age Type: Artifact Rarity: Rare Cost: {5} Jester's Mask enters the battlefield tapped. {1}, {T}, Sacrifice Jester's Mask: Target opponent puts the cards from their hand on top of their library. Search that player's library for that many cards. That player puts those cards into their hand, then shuffles.