Is Mewtwo-Mega-Y viable in Gen 6 Pure Hackmons?

Mewtwo-Mega-Y is ranked #20 in Gen 6 Pure Hackmons with 10.34% usage according to Smogon May 2026 - Jul 2026 data.

What beats Mewtwo-Mega-Y in Gen 6 Pure Hackmons?

Groudon-Primal has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 54.7% of 25.11643079444572 relevant encounters. Standard error is 9.9 points. Sets and switch conditions can change the result.

How are Mewtwo-Mega-Y matchup checks ranked in Gen 6 Pure Hackmons?

They are ranked by p minus four standard errors. Here, p is the observed fraction of relevant encounters where Mewtwo-Mega-Y was knocked out or switched out. This is not a set-specific battle guarantee.

Mewtwo-Mega-Y counters

Gen 6 Pure Hackmons · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0150 Mewtwo-Mega-Y

Psychic

USAGE 10.3% #20

ABILITYWonder Guard

BASE STATS

HP 106

ATK 150

DEF 70

SPA 194

SPD 120

SPE 140

BST780

TYPE MATCHUPS

2×

BugGhostDark

½×

FightingPsychic

Moves

Taunt 40.3% Baton Pass 33.1% Substitute 27.3% Psystrike 25.1% Light of Ruin 22.2% Moonblast 19.8% Trick 16.2% Boomburst 13.1%

Items

Leftovers 31.3% Focus Sash 21.5% Choice Scarf 16.6% Choice Specs 10.0% Shed Shell 6.1% Safety Goggles 3.5% Life Orb 3.0% Expert Belt 2.1%

Abilities

Wonder Guard34.5%Mold Breaker17.5%Shadow Tag14.4%No Guard8.9%Protean5.6%Prankster5.5%Teravolt4.1%Turboblaze3.4%

Common Teammates

Leading observed checks

Open a matchup for a separate set-based damage estimate, or browse uploaded teams with both Pokémon.

Checks & Counters

Observed target KO or switch rate is upstream p: the fraction of relevant encounters where the target was knocked out or switched out. Standard error is upstream d. The conservative score is p − 4d. These ladder observations do not prove a set-specific counter.

How to read this table

Use encounter count and standard error to judge the sample. Damage estimates below use inferred sets and remain separate from the observed ladder metric.

# Checker Encounters Conservative score Target KO or switch rate

Groudon-Primal

GroundFire SOFT CHECK View matchup

25.116

15.0

54.7% Standard error 9.93 points

DAMAGE CALC

252+ Atk Mold Breaker Groudon-Primal V-create vs. 252 HP / 0 Def Mewtwo-Mega-Y: 552-651 (132.6 - 156.4%) -- guaranteed OHKO

View Groudon-Primal counters →

Xerneas

Fairy SOFT CHECK View matchup

20.549

-3.6

39.5% Standard error 10.78 points

Kyogre-Primal

Water SOFT CHECK View matchup

21.728

-15.8

13.8% Standard error 7.41 points

Ranked #20 with 10.34% usage. Sorted by conservative score.