Your search for "Valkyrie Sechste SAST-EN088" revealed the following:
Valkyrie Sechste - SAST-EN088 - Secret Rare - 1st Edition from Savage Strike 1st Edition, available at 401 Games Canada. Rarity: Secret Rare Card Text:If this card is Special Summoned: You can Special Summon 1 "Valkyrie" monster from your Deck,...
Valkyrie Sechste - SAST-EN088 - Secret Rare - Unlimited from Savage Strike Unlimited, available at 401 Games Canada. Rarity: Secret Rare Card Text:If this card is Special Summoned: You can Special Summon 1 "Valkyrie" monster from your Deck, except "Valkyrie...