Your search for "Valkyrie Sechste MP20-EN043" revealed the following:
Valkyrie Sechste - MP20-EN043 - Ultra Rare - 1st Edition from 2020 Tin of Lost Memories 1st Edition, available at 401 Games Canada. Rarity: Ultra Rare Card Text:If this card is Special Summoned: You can Special Summon 1 "Valkyrie" monster...