Is Diancie-Mega viable in Gen 8 National Dex?

Diancie-Mega is ranked #12 in Gen 8 National Dex with 12.27% usage according to Smogon Feb 2026 - Apr 2026 data.

What beats Diancie-Mega in Gen 8 National Dex?

The best counter for Diancie-Mega in Gen 8 National Dex is Chansey with a 87.6% win rate when they meet. Based on Smogon's Feb 2026 - Apr 2026 usage data, the top Pokémon that beat Diancie-Mega include Chansey, Landorus-Therian.

What is the best counter for Diancie-Mega in Gen 8 National Dex?

Chansey is the best counter for Diancie-Mega in Gen 8 National Dex, KOing or forcing it out in 87.6% of their encounters.

Diancie-Mega counters

Gen 8 National Dex · Sorted by reliability score · Smogon · Feb 2026 - Apr 2026

#0719 Diancie-Mega

RockFairy

USAGE 12.3% #12

BASE STATS

HP 50

ATK 160

DEF 110

SPA 160

SPD 110

SPE 110

BST700

TYPE MATCHUPS

4×

Steel

2×

WaterGrassGround

½×

NormalFireFlyingBugDark

0×

Dragon

Moves

Moonblast 98.7% Diamond Storm 82.6% Earth Power 71.8% Mystical Fire 56.5% Stealth Rock 27.1% Hidden Power Ice 22.8% Substitute 16.1% Endeavor 16.0%

Items

Diancite 100.0%

Common Teammates

Landorus-Therian39.3%

Checks & Counters

Ranked by reliability — blends KO rate with how often each Pokémon is matched up.

# Checker Encounters Reliability KO Rate

Chansey

Normal DEFENSIVE COUNTER

21.035

87.6% dies 7.18%

DAMAGE CALC

0- Atk Diancie-Mega Diamond Storm vs. 252 HP / 0 Def Eviolite Chansey: 498-586 (70.7 - 83.2%) -- guaranteed 2HKO

View Chansey counters → Teams with Chansey →

Landorus-Therian

GroundFlying SOFT CHECK

20.492

51.4% dies 11.04%

DAMAGE CALC

252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Diancie-Mega: 360-426 (118.4 - 140.1%) -- guaranteed OHKO

View Landorus-Therian counters → Teams with Landorus-Therian →

Ranked #12 with 12.27% usage. Sorted by reliability score.