Your search for "Skill Successor SDLI-EN034" revealed the following:
Skill Successor - SDLI-EN034 - Common - 1st Edition from Structure Deck: Realm of Light 1st Edition, available at 401 Games Canada. Rarity: Common Card Text:Target 1 face-up monster you control; it gains 400 ATK until the end of this...
Skill Successor - SDLI-EN034 - Common from Structure Deck: Realm of Light (2020 Date Reprint), available at 401 Games Canada. Rarity: Common Card Text:Target 1 face-up monster you control; it gains 400 ATK until the end of this turn. During...