Chthonian Emperor Dragon

Level 6 FIRE/Dragon Gemini Effect
2400 ATK / 1500 DEF

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect:
● This card can attack twice during the same Battle Phase.

Rulings – Yugipedia

Printings:

Tactical Evolution: TAEV-EN019 (Ultimate Rare) - 2007-08-15
Tactical Evolution: TAEV-EN019 (Ultra Rare) - 2007-08-15

Prices:

Cardmarket: 1.31 €
TCGplayer: $ 1.68