Oh F!sh!

Counter Trap Card

When an Effect Monster's effect activates: Shuffle 1 of your banished Fish, Sea Serpent, or Aqua-Type monsters into the Main Deck; negate the activation and destroy it.

Rulings – Yugipedia

Printings:

Generation Force: GENF-EN069 (Rare) - 2011-08-16
OTS Tournament Pack 28: OP28-EN026 (Common) - 2025-06-18

Prices:

Cardmarket: 0.08 €
TCGplayer: $ 0.29