Your search for "Crystal Seer 23" revealed the following:
Crystal Seer - TAEV-EN031 - Ultra Rare - Unlimited from Tactical Evolution Unlimited, available at 401 Games Canada. Rarity: Ultra Rare Card Text:FLIP: Pick up 2 cards from the top of your Deck. Select 1 of those cards and add...
Crystal Seer - TAEV-EN031 - Ultimate Rare - Unlimited from Tactical Evolution Unlimited, available at 401 Games Canada. Rarity: Ultimate Rare Card Text:FLIP: Pick up 2 cards from the top of your Deck. Select 1 of those cards and add...
Crystal Seer - TAEV-EN031 - Ultimate Rare - 1st Edition from Tactical Evolution 1st Edition, available at 401 Games Canada. Rarity: Ultimate Rare Card Text:FLIP: Pick up 2 cards from the top of your Deck. Select 1 of those cards...
Crystal Seer - TAEV-EN031 - Ultra Rare - 1st Edition from Tactical Evolution 1st Edition, available at 401 Games Canada. Rarity: Ultra Rare Card Text:FLIP: Pick up 2 cards from the top of your Deck. Select 1 of those cards...
Crystron Token - OP28-EN027 - Super Rare from OTS Tournament Pack 28, available at 401 Games Canada. Rarity: Super Rare Card Text:This card can be used as a "Crystron Token".*If used for another Token, apply that Token's Type/Attribute/Level/ATK/DEF.