Mega Evolution timing in Pokémon Champions
A Mega Evolution comes before moves, ordered by Speed before it Mega Evolves, as far as players' tests show.
Details
- Sources
- A player’s count Smogon research thread #50: about 22 logged tests on two streams, before a fix the thread reports (DaWoblefet) Apr 9, 2026
- A report Smogon research thread #75: one setup after a fix the thread reports gave the expected Speed order (DaWoblefet) Apr 9, 2026
- Engine (Showdown’s mod) Showdown's Champions mod: Mega order
- CountAbout 22 tests before a fix the thread reports; one setup after
- What DexDB doesPartly: the calc treats a Mega as Mega from turn 1; the sim runs the engine's order
- Note#50 says the developers called the order seen in the tests a bug. No notice found lists a fix; the thread reports one, and one setup after it is all that supports the rule. For both sides Mega Evolving, see Two Megas on one turn.
- ReadNov 2, 2026
What is known
- Speed that turn
The new Speed applies the same turn.
Details
- Sources
- Engine (Showdown’s mod) DexDB ran the engine: a Lopunny at 155 Speed moved before one at 142
- What DexDB doesModelled: the calc uses the Mega form's stats
- NoteGuides agree. No game count.
- ReadNov 1, 2026
- Sources
- Two Megas
When both sides Mega Evolve, the order may be wrong: a known issue, no fix listed.
Details
- Sources
- Official notice Pokémon HOME news, known issues (758): order may be wrong when both sides Mega Evolve
- A player’s count Smogon research thread #50: about 22 logged tests on two streams, before a fix the thread reports (DaWoblefet) Apr 9, 2026
- A report Smogon research thread #75: one setup after a fix the thread reports gave the expected Speed order (DaWoblefet) Apr 9, 2026
- Engine (Showdown’s mod) Showdown's Champions mod: Mega order
- CountAbout 22 tests before a fix the thread reports; one setup after
- What DexDB doesPartly: the calc treats a Mega as Mega from turn 1; the sim runs the engine's order
- NoteNotice 758 lists the both-sides Mega order as a known issue. No notice found lists a fix. The thread reports one, and one setup after it is all that supports the Speed order.
- ReadNov 2, 2026
- Sources
- Mega against a switch
Whether a switch goes before a Mega Evolution on the same turn.
Details
- Sources
- Engine (Showdown’s mod) Showdown's Champions mod: switches go first
- What DexDB doesNot modelled in the calc; the sim runs the engine's rule
- NoteOne unread report on another site says the reverse. In-game text is silent.
- ReadNov 1, 2026
- Sources
- One a battle
A side can Mega Evolve once per battle, and only a Pokémon holding its Mega Stone.
Details
- Sources
- Official notice Pokémon HOME news, Regulation M-C notice (816)
- Official notice Pokémon HOME news, Mega Evolution Battle Competition (852)
- What DexDB doesModelled: the sim runs the engine's rule; the calc picks a Mega by its stone
- ReadNov 1, 2026
- Sources
- Stays Mega after fainting
A Pokémon that Mega Evolved stays Mega after it faints.
Details
- Sources
- A report Smogon research thread #35: a tentative observation ("seems like"), posed as a question (Hydrametr0nice) Apr 8, 2026
- Engine (Showdown’s mod) Showdown's Champions mod: a Mega Evolution is a permanent forme change
- What DexDB doesModelled in the sim (the engine's rule). Calc: not checked
- ReadNov 2, 2026
- Sources
Each statement is a row of the mechanics ledger, with its sources. Unknown means no game evidence, so DexDB plays the engine’s rule.