Your search for "witch's apprentice mrd-121" revealed the following:
Witch's Apprentice - MRD-121 - Rare - 1st Edition from Metal Raiders 1st Edition, available at 401 Games Canada. Rarity: Rare Card Text:As long as this card remains face-up on the Field, increase the ATK of all DARK monsters by...
Witch's Apprentice - MRD-EN121 - Rare - 25th Anniversary Edition Unlimited
Metal Raiders (25th Anniversary Edition)
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Witch's Apprentice - MRD-EN121 - Rare - 25th Anniversary Edition Unlimited from Metal Raiders (25th Anniversary Edition), available at 401 Games Canada. Rarity: Rare Card Text:As long as this card remains face-up on the Field, increase the ATK of all...
Witch's Apprentice - MRD-121 - Rare - Unlimited from Metal Raiders Unlimited, available at 401 Games Canada. Rarity: Rare Card Text:As long as this card remains face-up on the Field, increase the ATK of all DARK monsters by 500 points...