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Mega Metagross ex Dialga ex Deck Guide

Published August 15, 2026 Updated August 15, 2026

Mega Metagross ex Dialga ex is a Pokémon TCG Pocket archetype that generally aims to set up Beldum alongside Mega Metagross ex as its main attacker, supported by the deck's energy. Based on 12 recent tournament lists.

Mega Metagross ex

Deck List

Total Cards
21
Pokémon
6
Trainers
15
Energy
Sample Size
12
Tournaments
11
Last Updated
Aug 11, 2026

Pokémon (6)

Beldum

Mega Metagross ex

Dialga ex

Trainers (15)

Professor's Research

Copycat

Cyrus

Poké Ball

Rare Candy

Leaf

Sabrina

May

Metal Core Barrier

Lucky Ice Pop

Get the list on Discord

Strengths

  • Highly consistent core: Beldum appears in nearly every tournament list, so the build has a settled identity.
  • Clear win condition built around Beldum paired with Mega Metagross ex, so lines of play are easy to rehearse.
  • Single-type the deck's energy keeps attachments efficient and rarely bricks on the wrong type.
  • Built from 12 tournament lists across 11 events, so the consensus reflects real competitive play rather than ladder theory.

Weaknesses

  • Needs its evolution line on board; a slow opener can leave the deck without a fully powered Beldum.
  • Predictable single-type the deck's energy lets opponents plan blockers and resistance once your attacker shows up.
  • Disruption Supporters like Cyrus and Sabrina chain knockouts against the benched Pokémon this deck needs to keep alive.
  • Stage 1/2 Pokémon in the list take an extra turn to come online — pure-Basic decks can race you before Beldum attacks.

Key Matchups

  • Aggressive Basic-only decks Even
  • Mirror or other Beldum lists Even
  • Disruption / Cyrus + Sabrina decks Unfavored

Strategy Overview

Common builds of Mega Metagross ex Dialga ex aim to evolve into Beldum and Mega Metagross ex as quickly as possible, then trade prizes through repeated knockouts. The deck leans on the deck's energy attachments each turn, with draw Supporters and search items to find the key pieces. The list shown here is a consensus across 12 tournament decklists (top card appears in nearly every tournament list, average 2.00 copies).

Gameplay Video

Gameplay video coming soon.

Key Cards

Beldum

appears in nearly every tournament list (average 2.00 copies). Core part of the archetype's engine.

Mega Metagross ex

appears in nearly every tournament list (average 1.83 copies). Core part of the archetype's engine.

Dialga ex

appears in nearly every tournament list (average 2.00 copies). Core part of the archetype's engine.

Early Game

On turn one, prioritise finding Beldum or Mega Metagross ex and getting a basic on the bench so you can evolve next turn. Use Professor's Research or Poké Ball aggressively if your opener is weak. Avoid attaching key energy to a Pokémon that will never attack.

Mid Game

By the mid game, Beldum should be online with a back-up attacker on the bench. Sequence knockouts so each attack sets up the next. Use Cyrus to drag damaged opposing Pokémon active, and Sabrina to force unfavorable switches.

Late Game

Late game, count remaining prizes and build the exact line that closes the game. If ahead, deny the comeback with Sabrina; if behind, look for a single-turn knockout chain through Beldum.

Card Replacements

BeldumNo direct replacement (craft this card)

Beldum appears in nearly every tournament list and defines the archetype. If you cannot craft it, consider a different deck rather than substituting.

Professor's ResearchIono

Iono is the closest universal draw Supporter if you are short on Professor's Research, though it trades raw card quantity for a hand reset.

CyrusSabrina

Sabrina forces a switch from the opponent's choice; less precise than Cyrus but keeps disruption pressure.

Poké BallPokémon Communication

Pokémon Communication swaps a Pokémon in hand for any from the deck — useful if Poké Ball's random pull is unreliable for this build.

Common Mistakes

  • Benching Beldum before you can protect it, letting the opponent snipe your main attacker.
  • Attaching energy to a Pokémon that will not attack this game.
  • Spending Cyrus or Sabrina too early when they would close a prize two turns later.
  • Auto-attacking the active Pokémon instead of sequencing knockouts with Sabrina/Cyrus.
  • Burning Professor's Research with a full hand and losing closing-turn resources.

Tips & Tricks

  • Mulligan aggressively for Beldum or Mega Metagross ex in the opener.
  • Bench every basic you intend to evolve as early as possible — empty benches lose tempo wars.
  • Track prize counts carefully; this deck usually wants to chain knockouts in the mid game.
  • If you fall behind on board, pivot to a single-prize attacker and rebuild rather than giving up a multi-prize knockout.

Frequently Asked Questions

What is the Mega Metagross ex Dialga ex deck in Pokémon TCG Pocket?

Mega Metagross ex Dialga ex is an archetype built around Beldum and Mega Metagross ex, using the deck's energy. This guide is built from 12 real tournament decklists across 11 events.

Is Mega Metagross ex Dialga ex good right now?

Based on current tournament lists, Mega Metagross ex Dialga ex appears regularly in competitive play. We do not claim a win rate — refer to the tier list for current placement.

What are the key cards in Mega Metagross ex Dialga ex?

The most-played cards across tournament lists are Beldum, Mega Metagross ex and Dialga ex. The list usually runs around 10 different Trainer cards for consistency and disruption.

What energy does Mega Metagross ex Dialga ex use?

Energy choice varies across tournament lists for this archetype.

Where does this guide's data come from?

This is a generated draft based on 12 tournament decklists imported from Limitless. The card list reflects what appears most often in real competitive play, not a fixed recipe.

How This Deck Guide Was Generated

This guide is based on 12 tournament decklists across 11 tournaments imported from Limitless. The decklist shown reflects the most common competitive build at the time of generation.

Sample updated August 11, 2026 Published August 15, 2026