Thermal Genex

Level 8 FIRE/Machine Synchro Effect
2400 ATK / 1200 DEF

"Genex Controller" + 1 or more non-Tuner FIRE monsters
This card gains 200 ATK for each FIRE monster in your Graveyard. If this card destroys an opponent's monster by battle, inflict 200 damage to your opponent for each "Genex" monster in your Graveyard.

Rulings – Yugipedia

Printings:

Duel Terminal 2: DT02-EN034 (Duel Terminal Ultra Parallel Rare) - 2010-05-25
Hidden Arsenal 2: HA02-EN028 (Secret Rare) - 2010-07-15

Prices:

Cardmarket: 0.46 €
TCGplayer: $ 0.27