Mages' Contest [Invasion] Emblem Negate an activation of a

Negate an activation of a Spell/Trap Card / Normal Summon / Flip Summon / Special Summon and destroy the Spell Card

Set: Rise of the Duelist Card type: Fusion/Effect Monster Rarity: Starlight Rare Attack: 2600 Defense: 2100 1 "Gaia the Fierce Knight" monster + 1 Level 5 Dragon monster This card's name becomes "Gaia the Dragon Champion" while on the field

Set: Sun & Moon: Celestial Storm Type: Supporter Rarity: Ultra Rare

You can only use each effect of "Joker's Knight" once per turn

You can only activate 1 "Pot of Duality" per turn

Mages' Contest [Invasion] Emblem Negate an activation of aSet: Invasion Type: Instant Rarity: Rare Cost: {1}{R}{R} You and target spell's controller bid life. You start the bidding with a bid of 1. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder loses life equal to the high bid. If you win the bidding, counter that spell.