Elemental HERO Rampart Blaster

Level 6 EARTH/Warrior Fusion Effect
2000 ATK / 2500 DEF

"Elemental HERO Clayman" + "Elemental HERO Burstinatrix"
Must be Fusion Summoned and cannot be Special Summoned by other ways. This card can attack while in face-up Defense Position, but only if your opponent controls no monsters, and if it does, this card's ATK is halved during damage calculation only.

Rulings – Yugipedia

Printings:

Elemental Energy: EEN-EN033 (Ultimate Rare) - 2005-11-16
Elemental Energy: EEN-EN033 (Ultra Rare) - 2005-11-16
Duelist Pack: Jaden Yuki: DP1-EN012 (Rare) - 2006-02-08
Dark Revelation Volume 4: DR04-EN093 (Rare) - 2007-11-14
Legendary Collection 2: The Duel Academy Years Mega Pack: LCGX-EN047 (Super Rare) - 2011-10-04
Speed Duel GX: Duel Academy Box: SGX1-ENA23 (Common) - 2022-03-17

Prices:

Cardmarket: 0.33 €
TCGplayer: $ 0.36