Your search for "Genex Undine AP01-EN005" revealed the following:
Genex Undine - AP01-EN005 - Super Rare - Unlimited from Astral Pack 1, available at 401 Games Canada. Rarity: Super Rare Card Text:When this card is Normal Summoned: You can send 1 WATER monster from your Deck to the Graveyard;...
Genex Undine - DT01-EN060 - Duel Terminal Super Parallel Rare from Duel Terminal 1, available at 401 Games Canada. Rarity: Duel Terminal Super Parallel Rare Card Text:When this card is Normal Summoned: You can send 1 WATER monster from your...