Counter Gem

Normal Trap

Send all cards in your Spell & Trap Card Zone to the Graveyard. Place as many "Crystal Beast" monsters as possible from your Graveyard in your Spell & Trap Card Zone, face-up, as Continuous Spell Cards. During the End Phase, destroy all face-up "Crystal Beast" cards you control.

Rulings – Yugipedia

Printings:

Duelist Pack: Jesse Anderson: DP07-EN024 (Ultra Rare) - 2008-01-26
Legendary Duelists: Season 1: LDS1-EN113 (Common) - 2020-07-02
Structure Deck: Legend of the Crystal Beasts: SDCB-EN038 (Common) - 2022-09-29

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.09