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.

Beldum
Mega Metagross ex
Dialga ex
Professor's Research
Copycat
Cyrus
Poké Ball
Rare Candy
Leaf
Sabrina
May
Metal Core Barrier
Lucky Ice Pop
Source decklists referenced for this guide:
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).
appears in nearly every tournament list (average 2.00 copies). Core part of the archetype's engine.
appears in nearly every tournament list (average 1.83 copies). Core part of the archetype's engine.
appears in nearly every tournament list (average 2.00 copies). Core part of the archetype's engine.
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.
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, 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.
Beldum appears in nearly every tournament list and defines the archetype. If you cannot craft it, consider a different deck rather than substituting.
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.
Sabrina forces a switch from the opponent's choice; less precise than Cyrus but keeps disruption pressure.
Pokémon Communication swaps a Pokémon in hand for any from the deck — useful if Poké Ball's random pull is unreliable for this build.
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.
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.
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.
Energy choice varies across tournament lists for this archetype.
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.
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.