Your search for "Trade-In LDK2-ENK28" revealed the following:
Trade-In - LDK2-ENK28 - Common - 1st Edition from Legendary Decks II 1st Edition, available at 401 Games Canada. Rarity: Common Card Text:Discard 1 Level 8 monster; draw 2 cards.
Trade-In - LDK2-ENK28 - Common - Unlimited from Legendary Decks II Unlimited 1996 Print, available at 401 Games Canada. Rarity: Common Card Text:Discard 1 Level 8 monster; draw 2 cards.
Trade-In - LDK2-ENK28 - Common - Unlimited (2020 Reprint) from Legendary Decks II 2020 Reprint, available at 401 Games Canada. Rarity: Common Card Text:Discard 1 Level 8 monster; draw 2 cards.(Disclaimer: This card features a 2020 Copyright date.)