Start from the live roster
Pokemon Champions fights through regulation sets, and each set carries its own roster. Regular Roster M-C is the one in play right now, and it stays valid through December 2, 2026 (UTC). Every row in the table below comes from that roster and nothing else, so a squad you finish here is a squad the game will accept — no discovering mid-way through a build that a pick is off-list.
The roster runs on fully evolved species with a few deliberate exceptions, and it skips legendaries and mythicals entirely. Mega Evolutions are in, and every Mega-capable species carries a flag in the table. If you want the same engine pointed at the full national dex instead, the Pokemon Team Picker does exactly that.
Pick six, bring three or four
Every Champions squad starts as six. In singles, three of those six step into the match; in doubles, four do. The formation toggle at the top of the builder marks the members that are on deck: fill your slots, switch between Singles and Doubles, and drag members around until the right trio — or quartet — is the one highlighted.
A build order that works: lock the two or three roles you already know the team needs (a fast cleaner, a physical wall, something with priority or a pivot move), then fill the rest with type coverage. Role-first building survives contact with real battles better than six strong picks that share a speed tier and little else.
Doubles rewards a different shape than singles does. Redirection, spread damage and speed control all earn their slots, and the four you bring rarely match the three you would bring in singles. Build one squad, then read it twice — once under Singles, once under Doubles — and let the highlight move when the format does.
Tune every set before it matters
Click a filled slot and the editor opens with the whole set in one place: nickname, nature, ability, held item and up to four moves from the species' learnset. The stat preview updates as you adjust, so a nature choice shows its cost immediately — a Modest pick on a base 80 Special Attack stat is a decision you can see, not guess at.
Items decide about as much as natures do. The list carries the M-C holds, from choice items and berries through the terrain seeds to the Mega stones. If a spread has you stuck between two natures, the Pokemon Nature Chart maps every nature to the stats it raises and lowers.
Mega Evolution, stones included
Species that can Mega Evolve show an M in the roster table. Flip the Mega switch in the slot editor and the form takes over: its stats, typing and ability replace the base species, and the stat preview re-reads on the spot. You can compare a Mega wall against its base form without leaving the editor.
Stones are half the battle. Where the matching Mega stone is in the item list, the editor selects it the moment the switch flips; prefer a different hold, set it back by hand and the Mega form stays. If you just want to roll a random Mega for fun, the Random Mega Pokemon Generator is the companion page.
Read the defensive matchup matrix like a scout
The Team Defense panel turns your six into a grid: one row per attacking type, one column per member, and each cell showing the multiplier that type's moves hit for — red where you take extra damage, green where you shrug it off. The W, R and T columns total the weaknesses and resists across the whole squad, which is how a shared Electric or Ground hole shows up before a battle does.
Swap one member and the grid re-reads instantly. Treat the matrix as the last checkpoint of a build: if two members share a crippling weakness, decide whether the coverage elsewhere pays for it. For the full table behind the cells, the Pokemon Type Chart shows every interaction in one place.
Singles and doubles read the same grid differently. In singles, a member that resists half the likely attacks is worth its slot on that alone. In doubles, what matters just as much is the pair standing next to each other — cover both sides of the field, or the matrix will show you the turn the opponent wins.
Export, share and keep your squads
Three exits, each one click. Showdown copies a paste-ready team block that the Pokemon Showdown teambuilder reads straight back. JSON keeps the full set data for your own records. The share button builds a link that restores the exact squad — nicknames included — on any device.
Teams save to your browser automatically, and the import box takes both Showdown text and JSON, so passing a squad to a friend is a copy and a paste. Nothing leaves your machine. When you want to study an individual member beyond the roster view, the Pokemon Pokedex has a full page for every species.