Arcana Knight Joker

Edison Card Text
"Queen's Knight" + "Jack's Knight" + "King's Knight" A Fusion Summon of this card can only be conducted with the above Fusion Material Monsters. Once per turn, if this face-up card on the field is targeted by a Spell Card, Trap Card, or Effect Monster's effect, you can negate that effect by discarding the same kind of card (Spell, Trap, or Monster Card).
Ancient Prophecy • 2009-09-01
No targeting
No Damage Step effect
Banlist • Unlimited
Rulings
edisonformat.net
●Fusion Substitute cards (like King of the Swamp) can't be used in this card's Fusion Summon.
●Elemental Hero Prisma (that has gained the name of one of this card's Fusion Material) can be used in this card's Fusion Summon.
●This card can be Special Summoned from the Extra Deck by Summoner of Illusions.
●The ●This effect must be chained directly to the card or effect that is targeting “Arcana Knight Joker”.
●Discarding a card is a cost. This effect can be activated while Macro Cosmos is active.
●You can activate this effect during the Damage Step.
●This effect can't negate the effects of “Call of the Haunted” that destroys “Arcana Knight Joker” when it is destroyed.
edisonformat.com
(C) A Fusion Summon of this card can only be conducted with the above Fusion Material Monsters. (1) Once per turn, if this face-up card on the field is targeted by a Spell Card, Trap Card, or Effect Monster's effect, you can negate that effect by discarding the same kind of card (Spell, Trap, or Monster Card).
The (C) Condition cannot be negated.
Fusion Substitute cards (like "King of the Swamp") cannot be used in this card's Fusion Summon.
"Elemental Hero Prisma" (that has gained the name of one of this card's Fusion Material) can be used in this card's Fusion Summon.
This card can be Special Summoned from the Extra Deck by "Summoner of Illusions".
The (1) Quick Effect is optional, it activates & resolves on the field.
This effect must be chained directly to the card or effect that is targeting “Arcana Knight Joker”.
Discarding a card is a cost. This effect can be activated while "Macro Cosmos" is active.
You can activate this effect during the Damage Step.
This effect can't negate the effects of “Call of the Haunted” that destroys “Arcana Knight Joker” when it is destroyed.