Pokémon counters guide

Best Counters for Diancie-Mega

Find practical counter Pokémon, attacking types, and defensive matchup notes for Diancie-Mega.

RockFairy
Diancie-Mega Pokémon sprite

Diancie-Mega

#0719

Quick answer

Steel is the strongest answer because both Rock and Fairy are weak to Steel, creating a 4x weakness. Water, Grass, and Ground are strong secondary attacking types.

Best move types

Steel×4Water×2Grass×2Ground×2

Biggest weakness

Steel×4

Type matchup table

Steel type iconSteel4x
Water type iconWater2x
Grass type iconGrass2x
Ground type iconGround2x
Electric type iconElectric1x
Ice type iconIce1x
Fighting type iconFighting1x
Poison type iconPoison1x
Psychic type iconPsychic1x
Rock type iconRock1x
Ghost type iconGhost1x
Fairy type iconFairy1x
Normal type iconNormal0.5x
Fire type iconFire0.5x
Flying type iconFlying0.5x
Bug type iconBug0.5x
Dark type iconDark0.5x
Dragon type iconDragon0x

Recommended practical counters

Metagross Pokémon sprite

Metagross

#0376

Resists both STABsStrong physical attacker
SteelPsychic
  • Deals 4x damage with Steel-type attacks
  • Has STAB Steel-type attacks
  • Resists the target's Rock 0.5x, Fairy 0.5x STAB attacks
  • Strong attacking stats help convert the matchup
  • Solid mixed bulk improves switch-in safety
Best typeSteel×4

Safe into Rock 0.5x, Fairy 0.5x

135 offense · 70 Speed

Revavroom Pokémon sprite

Revavroom

#0966

Resists both STABsBudget option
SteelPoison
  • Deals 4x damage with Steel-type attacks
  • Has STAB Steel-type attacks
  • Resists the target's Rock 0.5x, Fairy 0.25x STAB attacks
  • Strong attacking stats help convert the matchup
Best typeSteel×4

Safe into Rock 0.5x, Fairy 0.25x

119 offense · 90 Speed

Archaludon Pokémon sprite

Archaludon

#1018

Bulky switch-inStrong special attacker
SteelDragon
  • Deals 4x damage with Steel-type attacks
  • Has STAB Steel-type attacks
  • Resists the target's Rock 0.5x STAB attacks
  • Strong attacking stats help convert the matchup
  • Solid mixed bulk improves switch-in safety
Best typeSteel×4

Safe into Rock 0.5x

125 offense · 85 Speed

Strong theoretical counters

Aggron-Mega Pokémon sprite

Aggron-Mega

#0306

Theoretical optionMega optionResists both STABs
Steel
  • Deals 4x damage with Steel-type attacks
  • Has STAB Steel-type attacks
  • Resists the target's Rock 0.5x, Fairy 0.5x STAB attacks
  • Strong attacking stats help convert the matchup
  • Solid mixed bulk improves switch-in safety
Best typeSteel×4

Safe into Rock 0.5x, Fairy 0.5x

140 offense · 50 Speed

Best move types to use

Steel×4Water×2Grass×2Ground×2

Move availability depends on game version and learnset data, so this page recommends move types rather than guaranteed moves.

Steel type pageWater type pageGrass type pageGround type page

Counter notes for Diancie-Mega

  • Diancie-Mega's Rock / Fairy typing makes Steel the cleanest answer because it reaches 4x damage. Its 110 base Speed means very slow counters still need enough bulk to take a hit first.
  • Water, Grass, and Ground attackers are useful secondary options when the top weakness is unavailable, but they should be chosen for safety, Speed, or team fit rather than raw multiplier alone.
  • Known abilities include Magic Bounce. This page does not assume ability-specific battle effects, so verify the format before relying on a single counter.
  • Avoid counters that are weak to Rock / Fairy unless they are fast enough to pressure immediately or bulky enough to survive the exchange.
  • Diancie-Mega has alternate forms in the National Dex, but this page focuses on the standard Rock / Fairy matchup.

What not to use

Dragon×0Normal×0.5Fire×0.5Flying×0.5Bug×0.5Dark×0.5

These attacking types are resisted or blocked by the defender's typing, so they are usually lower-priority choices unless they provide a special battle role.

Battle caveats

  • This ranking uses modern Gen 6+ type matchups, STAB value, defensive switch-in safety, and base stats.
  • Abilities, held items, Terastallization, weather, terrain, and format rules can change real battle outcomes.
  • Coverage moves can punish obvious counters, so treat this as type-based guidance rather than a full matchup simulator.
  • Move availability depends on game version and learnset data; this page recommends attacking types rather than guaranteed moves.

Related pages

Diancie-Mega weakness chartDiancie-Mega PokédexRock / Fairy countersSteel type pageWater type pageGrass type pagePokémon type chartSpeed tiers

FAQ

What is the best counter for Diancie-Mega?

Diancie-Mega is best countered by Pokémon that can use Steel (4x) attacks while avoiding bad defensive matchups into Rock / Fairy STAB attacks. Because this is a 4x weakness, even moderate attackers can create pressure if they can enter safely.

What type is best against Diancie-Mega?

Steel is the strongest attacking type against Diancie-Mega, dealing 4x damage under the modern Gen 6+ type chart.

How many useful attacking types hit Diancie-Mega super-effectively?

Diancie-Mega has 4 super-effective attacking options: Steel, Water, Grass, and Ground. Use the highest multiplier first, then choose a Pokémon that is not exposed to Rock / Fairy STAB attacks.

Are abilities included in this counter ranking?

No. The ranking uses base typing and base stats. Abilities, items, Terastallization, weather, terrain, and special move rules can change the real matchup.

Does Terastallization change Diancie-Mega counters?

Yes. Terastallization can replace the defensive typing used here, so the recommended counter types may change completely in formats where Tera is active.

What should I avoid using against Diancie-Mega?

Avoid relying on Dragon, Normal, Fire, Flying, and Bug attacks unless they have a special role or unusually high power.

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