Gallis the Star Beast

Level 3 EARTH/Beast Effect
800 ATK / 800 DEF

You can reveal this card in your hand; send the top card of your Deck to the Graveyard, then, if it was a monster, inflict damage to your opponent equal to its Level x 200 and Special Summon this card from your hand, otherwise destroy this card.

Rulings – Yugipedia

Printings:

Yu-Gi-Oh! GX Tag Force 3 promotional cards: GX06-EN001 (Super Rare) - 2008-11-28
Legendary Collection 2: The Duel Academy Years Mega Pack: LCGX-EN041 (Secret Rare) - 2011-10-04
Ra Yellow Mega Pack: RYMP-EN013 (Common) - 2012-02-17

Prices:

Cardmarket: 1.23 €
TCGplayer: $ 0.87