Royal Flush (SBLS-ENS04) - Speed Duel: Arena of Lost Souls 1st Edition

Skill activation:
Flip this card over when you activate this Skill.
Effect:
Once per turn, if you control "Queen's Knight", you can pay 1000 LP to Normal Summon 1 "King's Knight" in addition to your Normal Summon or Set. "King's Knight" and "Jack's Knight" you control cannot attack directly the turn you use this Skill.