Your search for "Copy Knight PHSW-EN066" revealed the following:
Copy Knight - PHSW-EN066 - Rare - Unlimited from Photon Shockwave Unlimited, available at 401 Games Canada. Rarity: Rare Card Text:When a Level 4 or lower Warrior-Type monster is Normal Summoned to your side of the field: Special Summon this...
Copy Knight - PHSW-EN066 - Rare - 1st Edition from Photon Shockwave 1st Edition, available at 401 Games Canada. Rarity: Rare Card Text:When a Level 4 or lower Warrior-Type monster is Normal Summoned to your side of the field: Special...