# 2026 Yu-Gi-Oh! Magnificent Monsters #MAMO-EN121

> Ruler of the End of the World is a DARK Fiend Ritual Effect Monster in the Yu-Gi-Oh! trading card game. This Level 10 card features 3000 ATK and 2900 DEF. It belongs to the End of the World archetype and is a Secret Rare Holo finish from the Magnificent Monsters set.

Canonical URL: https://supercatch.com/product/yu-gi-oh-magnificent-monsters-ruler-of-the-end-of-the-world-mamo-en121-secret-rare

## Identity

- **Year**: 2026
- **Brand**: Yu-Gi-Oh!
- **Set**: Magnificent Monsters
- **Card Number**: MAMO-EN121
- **Featured**: Ruler of the End of the World
- **Game**: Yu-Gi-Oh!
- **Rarity**: Secret Rare
- **Attribute**: Dark
- **Monster type**: Fiend
- **Level**: 10
- **ATK / DEF**: 3000 / 2900
- **Archetype**: End of the World
- **Language**: English
- **Material**: Card Stock
- **Finish**: Holo

## Description

Ruler of the End of the World (MAMO-EN121) is a Yu-Gi-Oh! trading card game card. It is a DARK Fiend Ritual Effect Monster with Level 10, 3000 ATK, and 2900 DEF. The card is part of the End of the World archetype. It appears in the Magnificent Monsters set with the set code MAMO. The specific printing is a Secret Rare with a Holo finish.

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Editorial content updated: 2026-10-11.

Site deployment: 2025-11-29.