# 2015 Yu-Gi-Oh! 2015 Mega-Tin Mega Pack #MP15-EN021

> Thestalos the Mega Monarch, the Secret Rare card MP15-EN021 from the 2015 Mega-Tin Mega Pack. A key Fire attribute Pyro monster for Yu-Gi-Oh! collectors.

Canonical URL: https://supercatch.com/product/yu-gi-oh-2015-mega-tin-mega-pack-thestalos-the-mega-monarch-mp15-en021-secret-rare

## Identity

- **Year**: 2015
- **Manufacturer brand**: Yu-Gi-Oh!
- **Set / series**: 2015 Mega-Tin Mega Pack
- **Card number**: #MP15-EN021
- **Product type**: TCG_CARD

## Description

Thestalos the Mega Monarch holds a distinct place in Yu-Gi-Oh! history as the final Monarch monster released before the archetype was restructured. Released in the 2015 Mega-Tin Mega Pack, this card carries the catalog number MP15-EN021 and serves as the capstone to that specific era of the series. Collectors often seek this card to complete the set or to represent the classic Monarch storyline, which remains a beloved pillar of the franchise's lore.

As a Secret Rare, this version of Thestalos features a premium holo finish that stands out in any collection. The intricate foil pattern catches the light, offering a visually striking contrast to the standard card designs found in the same pack. For players of the trading card game, this Fire attribute Level 8 Pyro monster provides a powerful option for decks focused on the Monarch archetype. Its effect allows players to summon other Monarch monsters from their deck, making it a functional piece of gameplay strategy as well as a collectible item.

The 2015 Mega-Tin Mega Pack was designed to offer a curated experience for dedicated fans, and Thestalos the Mega Monarch represents the pinnacle of that release. Its high rarity makes it a desirable target for those looking to build a comprehensive library of Yu-Gi-Oh! cards. Whether you are a longtime player or a new collector, adding this Secret Rare to your portfolio connects you with a significant moment in the game's evolution. The card's enduring popularity ensures it remains a staple for enthusiasts of the Monarch series.

## FAQ

### What is the rarity of Thestalos the Mega Monarch MP15-EN021?

Thestalos the Mega Monarch is printed as a Secret Rare in the 2015 Mega-Tin Mega Pack. This is one of the highest rarity tiers for the card, featuring a distinctive holo finish that distinguishes it from common and uncommon variants.

### What type of monster is Thestalos the Mega Monarch?

This card is an Effect Monster with the Pyro monster type and Fire attribute. It is a Level 8 monster that serves as the final piece of the Monarch archetype, allowing players to summon other Monarch monsters from their deck.

### How do I identify this card in the 2015 Mega-Tin Mega Pack?

You can identify this card by its catalog number MP15-EN021. It is the final card in the pack's sequence and is distinguished by its Secret Rare foil treatment, which gives it a unique shimmer compared to the rest of the set.

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Last verified: 2025-11-29.