Mega Latias
Dragon · Psychic · 700 BST · Latiasite
| Stat | Base | Mega | Relative size | Change |
|---|---|---|---|---|
| HP | 80 | 80 | — | |
| Attack | 80 | 100 | +20 | |
| Defense | 90 | 120 | +30 | |
| Sp. Atk | 110 | 140 | +30 | |
| Sp. Def | 130 | 150 | +20 | |
| Speed | 110 | 110 | — | |
| Total | 600 | 700 | +100 |
| Stat | Base | Mega | Relative size | Change |
|---|---|---|---|---|
| HP | 80 | 80 | — | |
| Attack | 80 | 100 | +20 | |
| Defense | 90 | 120 | +30 | |
| Sp. Atk | 110 | 140 | +30 | |
| Sp. Def | 130 | 150 | +20 | |
| Speed | 110 | 110 | — | |
| Total | 600 | 700 | +100 |
Latias, number 380 in the National Dex and a Hoenn Pokémon, holds Latiasite to become Mega Latias, taking its total from 600 to 700. The biggest single gain is 30 Defense, followed by 30 Sp. Atk. Nothing goes down — HP and Speed stay exactly where they were.
The typing does not change — it is Dragon and Psychic before and after — so the Mega is the same defensive problem as the base form, only bigger. The ability stays Levitate.
As Dragon and Psychic, 6 of the eighteen attacking types get through for extra damage. It resists 6. The full board is above; the short version is that the types listed under ×2 and ×4 are the ones worth planning around.
Mega Latias cannot be used in the current Pokémon Champions regulation, so there is no ladder data for it and no legal set to report. Latias is not legal either, so the whole line sits outside the format rather than just the Mega.
Regulation M-B closes on 9 September 2026, and legality is regenerated from the format data on every build rather than written by hand, so this page will change on its own if that changes.
Smogon publishes no head-to-head checks-and-counters data for doubles formats, so this list is computed, not measured: these are the most-played Regulation M-B Pokémon carrying a damaging move of a type Mega Latias takes extra damage from.
Of the 91 Mega forms in the dex, Mega Latias is 14th by base stat total. Its best stat is Sp. Def at 150, which is 2nd among Megas; its worst is HP at 80, 41st. One other Mega shares the Dragon and Psychic typing and therefore this exact matchup board: Mega Latios.
A Mega slot is a commitment: the stone occupies the held item, so whatever Mega Latias would have wanted from an item, it does not get. Drop it into the team builder to see what the rest of the six then have to cover, or take it to the damage calculator to find out whether those 140 points of Special Attack actually change a knockout.