Arcana Knight Joker

"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).