Spoiler warning. This page gives away the puzzle from 24 October 2025. If you have not played it yet, try it first – five guesses, and it is still there.
An absolute zero hero that destroys all opponent monsters when leaving.
Type: Fusion Monster
Set: Battles of Legend: Chapter 1
CardMarket price: 5.46$
Text: 1 "HERO" monster + 1 WATER monster
Must be Fusion Summoned. Gains 500 ATK for each WATER monster on the field, except "Elemental HERO Absolute Zero". If this card leaves the field: Destroy all monsters your opponent controls.