How To Build Better Decks

Every deck needs a single sentence that explains how it wins. 'Mega Lucario EX OHKOs two EX attackers in a row.' 'Suicune EX Baxcalibur out-resources the opponent.' If you can't write that sentence about your build, the deck doesn't have a plan — it has a list of cards.

Build the 6–8 cards that execute that win condition first. Everything else is support.

Roughly 60% of your deck should be consistency: draw, search, energy acceleration. The other 40% is your win condition: attackers, evolution lines, key trainers. New players invert this — they cram 8 attackers and 2 draw cards and wonder why they brick every other game.

Cut a copy of your favorite EX before you cut a Professor's Research. Always.

A tech card is a single-purpose answer to a specific threat (e.g. Rocky Helmet vs. aggro). Run techs as 1-ofs unless you need to draw them by turn 2 — then run 2.

Don't fill the deck with tech cards 'just in case.' Three 1-of techs is usually the ceiling before consistency collapses.

A deck that beats your casual lobby is not a competitive deck. Queue ranked at Great Ball II or higher with the build and play 20 games. Track your win rate per matchup. Anything under 40% is a problem matchup — either tech for it or accept the bad matchup and move on.

After 20 games, swap exactly ONE card and play another 20. If you change five cards at once you can't tell which change helped. This is the slow secret of every top-100 player.