Number 30: Acid Golem of Destruction

Level 3 WATER/Rock Xyz Effect
3000 ATK / 3000 DEF

2 Level 3 monsters
During your Standby Phase: Detach 1 Xyz Material from this card or take 2000 damage. You cannot Special Summon any monsters. While this card has no Xyz Materials, it cannot attack.

Rulings – Yugipedia

Printings:

Shonen Jump Vol. 10, Issue 4 promotional card: JUMP-EN059 (Ultra Rare) - 2012-04-01
Return of the Duelist: Special Edition: REDU-ENSE2 (Super Rare) - 2012-09-21
Super Starter Power-Up Pack: YS13-ENV09 (Common) - 2013-06-14
Quarter Century Stampede: RA04-EN165 (Platinum Secret Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN165 (Quarter Century Secret Rare) - 2025-04-10

Prices:

Cardmarket: 0.64 €
TCGplayer: $ 0.45