Mew EX & Tapu Koko EX Deck Guide
LightningMew EX & Tapu Koko EX is a fast hybrid deck that combines Mew EX's Genome Hacking utility — copying an opposing EX's attack — with Tapu Koko EX's Plasma Hurricane chip and Miraidon EX's Legendary Drive energy acceleration. Budding Expeditioner and Professor Turo keep the engine flexible while Cyrus and Sabrina dictate prize trades.
Tournament List · Limitless Decklist
Deck List
Get the list on DiscordStrengths
- Mew EX copies opposing EX attacks for flexible answers
- Miraidon EX accelerates Lightning energy via Legendary Drive
- Tapu Koko EX provides consistent Lightning pressure
- Budding Expeditioner recycles Mew EX between turns
Weaknesses
- Three EX attackers stack prize liability
- Genome Hacking requires opposing EX to have the attack ready
- Vulnerable to Sabrina forcing bench swaps
- Energy zone management is tight across long games
Key Matchups
- EX-heavy attackers Favored
- Tempo midrange Even
- Fast Fighting aggro Unfavored
- Slow setup decks Favored
Strategy Overview
Open Mew EX or Tapu Koko EX, start applying chip damage with Plasma Hurricane while building Miraidon EX on the bench. Use Legendary Drive to swap energy onto Miraidon EX for explosive turns, and Genome Hacking with Mew EX to copy the opposing deck's best attack. Recycle Mew EX with Budding Expeditioner and Professor Turo to keep the threat angle fresh.
Gameplay Video
Key Cards
Mew EX
Utility attacker — Genome Hacking copies an opposing EX Pokémon's attack.
Tapu Koko EX
Lightning attacker that pressures with Plasma Hurricane chip.
Miraidon EX
Engine and finisher — Legendary Drive accelerates Lightning energy from hand.
Budding Expeditioner
Supporter that returns Mew EX to hand for repeated Genome Hacking turns.
Early Game
Bench Mew EX and Miraidon EX, attach Lightning energy, and start applying chip with Plasma Hurricane or Hadron Engine. On turn one with Mew EX & Tapu Koko EX, your priority is finding Mew EX or Tapu Koko EX so you can start attaching Lightning energy on schedule. If you open with the wrong basic, search aggressively with Professor's Research or Poké Ball before committing energy you might waste. Bench every basic you intend to evolve as early as possible — Mew EX and Tapu Koko EX need time to come online, and an empty bench turn one usually loses you the tempo war. Preserve removal Supporters like Cyrus or Sabrina for the mid game; using them on turn one is rarely worth the lost draw. Against fast aggressive openings hinted at by your unfavored matchups (three ex attackers stack prize liability), bench a pivot so a surprise knockout on the active does not strand your evolution line.
Mid Game
Use Legendary Drive to swap energy onto Miraidon EX and copy threats with Genome Hacking on Mew EX. By the mid game Mew EX & Tapu Koko EX should have Mew EX powered and at least one back-up attacker on the bench. This is the window where the deck's core engine — Mew EX, Tapu Koko EX, Miraidon EX — has to actively trade prizes. Sequence your attacks so each knockout sets up the next: leave a damaged opposing Pokémon active for Cyrus, or use Sabrina to drag out a benched threat before it can power up. Track your prize trade carefully. Mew EX & Tapu Koko EX leans on the strengths "Mew EX copies opposing EX attacks for flexible answers" and "Miraidon EX accelerates Lightning energy via Legendary Drive", so push the board state that maximises those lines rather than auto-attacking the active. If you fall behind on board, pivot to a single-prize attacker and use this turn to rebuild instead of giving up a multi-prize knockout.
Late Game
Close with Miraidon EX's Hadron Engine or chained Plasma Hurricane swings, recycling Mew EX as needed. Late game with Mew EX & Tapu Koko EX is about closing on your terms. Count your remaining prizes and the opponent's, then build the exact attack sequence that wins before they can stabilise. If you are ahead, deny the comeback: knock out their last realistic attacker or use Sabrina to strand a benched Pokémon that cannot retreat. If you are behind, look for an OHKO line using Mew EX — Mew EX & Tapu Koko EX typically wins from behind by chaining a single huge turn rather than grinding back evenly. Be ready to spend every remaining Supporter and energy on the closing turn; holding resources "just in case" after the prize race is decided is the most common way to throw a winning position with this deck.
Mulligan Guide & Opening Priorities
The ideal opener for Mew EX & Tapu Koko EX is Mew EX + Tapu Koko EX in hand with a way to attach Lightning energy on the first turn. Mulligan decisions in Pokémon TCG Pocket are limited, so focus on what you keep: prioritise basics that evolve into your key attackers, plus at least one draw Supporter like Professor's Research or Iono. Hold onto Rare Candy or stage-up pieces even if they look dead early — they enable the explosive mid game this deck depends on. Preserve removal cards (Cyrus, Sabrina) for when the opponent has a damaged or vulnerable bench rather than spending them on the first available target.
Common Mistakes
- Benching Mew EX too early without protection, letting the opponent snipe your main attacker before it is powered.
- Attaching Lightning energy to a Pokémon that will not attack this game instead of building toward your win condition.
- Spending Cyrus or Sabrina on turn one for tempo when they would have closed a prize two turns later.
- Evolving on curve into Mew EX without first checking whether you have the energy to attack the same turn.
- Ignoring the weakness "Three EX attackers stack prize liability" and not boarding a pivot or single-prize back-up in unfavored matchups.
- Auto-attacking the active Pokémon instead of using Sabrina/Cyrus to set up the knockout sequence the deck actually wants.
- Burning Professor's Research with a full hand and losing the cards you still needed for the closing turn.
Card Replacements
Mew EX fills a unique role in Mew EX & Tapu Koko EX (utility attacker — genome hacking copies an opposing ex pokémon's attack.). If you do not own it, the deck cannot be rebuilt around a single swap — consider playing a different Lightning archetype until you can craft it.
Tapu Koko EX fills a unique role in Mew EX & Tapu Koko EX (lightning attacker that pressures with plasma hurricane chip.). If you do not own it, the deck cannot be rebuilt around a single swap — consider playing a different Lightning archetype until you can craft it.
Miraidon EX fills a unique role in Mew EX & Tapu Koko EX (engine and finisher — legendary drive accelerates lightning energy from hand.). If you do not own it, the deck cannot be rebuilt around a single swap — consider playing a different Lightning archetype until you can craft it.
Iono is a strong universal draw Supporter and slots into nearly any deck if you are missing copies of Professor's Research, though it costs you raw card quantity.
Cyrus pulls a damaged bench Pokémon active; Sabrina lets the opponent choose, but still forces a switch and keeps your closing pressure alive.
Frequently Asked Questions
Is Mew EX & Tapu Koko EX beginner friendly?
Mew EX & Tapu Koko EX is a tournament deck build in Tier A. It has a few decision-heavy turns and a real evolution line to manage, so newer players should expect a learning curve before they pilot it well. Read the Early/Mid/Late Game sections above before queuing into ranked.
Is Mew EX & Tapu Koko EX good for ranked ladder?
Yes — Mew EX & Tapu Koko EX sits in Tier A of the current meta, and its strengths (Mew EX copies opposing EX attacks for flexible answers, Miraidon EX accelerates Lightning energy via Legendary Drive) line up well against most ladder decks. It is not the absolute top tier, but it is consistent enough to ladder with if you respect its unfavored matchups.
What are the hardest matchups for Mew EX & Tapu Koko EX?
The toughest matchups are Fast Fighting aggro. These decks attack the parts of your plan flagged in the Weaknesses section — usually three ex attackers stack prize liability. Mulligan harder for your fastest opener and lean on single-prize attackers to slow down the prize trade.
What should I craft first for Mew EX & Tapu Koko EX?
Prioritise Mew EX and Tapu Koko EX — these are the cards the deck cannot function without. Draw Supporters (Professor's Research, Iono) and removal (Cyrus, Sabrina) are universal staples and worth crafting even if you later swap archetypes.
Can I play Mew EX & Tapu Koko EX without the main Lightning engine?
Not really. Mew EX & Tapu Koko EX is built around Mew EX and the Lightning energy line — removing that core turns it into a different deck. If you are missing pieces, check the Card Replacements section above for the closest realistic alternatives, or play a budget archetype until you can craft the missing cards.
Is Mew EX & Tapu Koko EX tournament viable?
Mew EX & Tapu Koko EX has a real tournament track record — its favored matchups against EX-heavy attackers and Slow setup decks cover a meaningful share of the expected field. Bring it if the meta you are reading is heavy on those archetypes.
How long does a game with Mew EX & Tapu Koko EX usually take?
Most games end inside the Pokémon TCG Pocket turn clock once Mew EX is online. The slow games are the ones where you miss the evolution or energy attachment on the key turn — those usually decide themselves before turn six.
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