What Mega Evolution changes
Beedrill, number 15 in the National Dex and a Kanto Pokémon,
holds Beedrillite to become Mega Beedrill,
taking its total from 395 to 495. The biggest single gain is 70 Speed, followed by 60 Attack. It also loses 30 Sp. Atk.
The typing does not change — it is Bug and Poison before and after — so the Mega is the same defensive problem as the base form, only bigger. Mega Evolving replaces Swarm and Sniper with Adaptability.
What gets through
As Bug and Poison, 4 of the eighteen attacking types get through for extra damage. It resists 5. The full board is above; the short version is that the
types listed under ×2 and ×4 are the ones worth planning around.
On the Regulation M-B ladder
Mega Beedrill is played on 0.16% of teams in the Regulation M-B VGC
ladder, which puts it 164th of the 282 Pokémon with enough games to
measure. The move almost every one of them carries is Poison Jab at 98.4%.
The Champions module tiers it UU.
Those figures come from Smogon's published usage statistics rather than from anything measured
here, and they describe what the ladder plays, not what is strongest.
What threatens it
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 Beedrill takes extra damage from.
- Incineroar — Flare Blitz (Fire, ×2), on 91.2% of its sets
- Garchomp — Rock Slide (Rock, ×2), on 75.9% of its sets
- Charizard-Mega-Y — Heat Wave (Fire, ×2), on 99.2% of its sets
- Farigiraf — Psychic (Psychic, ×2), on 54.4% of its sets
- Pelipper — Hurricane (Flying, ×2), on 98.1% of its sets
- Staraptor-Mega — Brave Bird (Flying, ×2), on 83.4% of its sets
Where it sits among the Megas
Of the 91 Mega forms in the dex, Mega Beedrill is 89th by base
stat total. Its best stat is Attack at 150, which is 21st
among Megas; its worst is Sp. Atk at 15, 91st.
One other Mega shares the Bug and Poison typing and therefore this exact matchup board: Mega Scolipede.
Putting it on a team
A Mega slot is a commitment: the stone occupies the held item, so whatever Mega Beedrill 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
150 points of
Attack actually change a
knockout.