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Guide · Tera Primer · Not Yet Live
Terastallization. Coming, Not Here.
Tera isn't legal in Reg M-A. It's confirmed for a future regulation. Here's what it is, what to expect, and why you should be building teams that can absorb it when the rules change.
× Current Status · Regulation M-A
- Tera is NOT legal. Only Mega Evolution is playable as a battle mechanic in Reg M-A (through June 17, 2026).
- Tera IS confirmed to come. Pokémon Co. has said Champions will eventually support all four current gimmicks — Mega, Z-Moves, Dynamax, and Tera.
- No date. The next regulation rotation is the earliest likely window. If it drops, expect it in a future Reg M-B / M-C ruleset.
What Terastallization Does
Terastallization is a Scarlet/Violet-era mechanic. Once per battle, a Pokémon changes its type to a pre-assigned Tera Type— which can be any of the 18 types, independent of the Pokémon's normal typing. The move stays the same; what changes is the type chart calculation.
Defensive Tera: a Water Pokémon Teras into Fairy to wall a Dragon move. Your type matchups get a full reset on-demand.
Offensive Tera: a Pokémon Teras into its own primary type — same damage, but now with boosted 1.5× STAB × 1.5× if the move already matched (effectively 2.25× base damage on a Tera-matched attack).
One-shot resource: You can only Tera one Pokémon per battle. The decision of when is the whole skill.
Why This Changes Champions When It Arrives
Mega vs. Tera decision. If both are legal simultaneously, Champions will mirror S/V Paldea tournament rules — one gimmick per battle, so teams either use their Mega turn or save their Tera. The entire tempo of the format changes.
Tera Types show at preview. In every previous Tera format, Tera Types were visible in open team lists. That means the Team Preview reads get a new layer — you see not just their six, but their six planned type swaps.
Existing Balance teams benefit. The Incineroar + Garchomp + redirection framework doesn't break under Tera — it just picks up a defensive Tera on the frail slot. Hyper Offense gains the most because Tera-boosted STAB turns a 2HKO into a OHKO.
Stall stays dead. Tera doesn't fix the 20-minute timer problem. If anything it speeds games up because Tera Blast and Tera STAB create more OHKO lines.
▸ How To Prep Before Tera Drops
- Don't spec your team around a type that could get Tera'd out. If your whole win condition relies on a specific super-effective matchup, one defensive Tera cancels it.
- Keep one Pokémon with flexible coverage. Moves like Earthquake, Ice Beam, or Dazzling Gleam stay useful against Tera swaps because they hit multiple types. Monochrome coverage is a trap.
- Learn the two-gimmick math. When both Mega and Tera are legal, the team that uses its mechanic on the right turn wins. Mega early for pressure, save Tera for the late-game read — or vice versa depending on matchup.
- Watch the ChampDex news feed.When Tera goes live, we'll update every affected guide and add Tera support to the calc. The news feed will be the first place it lands.