VGC Team Building Guide · Regulation I

Koraidon
Best Partners 2026

Koraidon's Orichalcum Pulse auto-sets Sun, powering Protosynthesis teammates and Fire attackers simultaneously. The six core partners below cover S-tier must-runs and A-tier situational picks, with a full breakdown of each synergy mechanism.

Sun Synergy Overview
Fire moves×1.5 power boost
Water moves×0.5 power (counters rain)
Protosynthesis abilityHighest stat ×1.3 boost
Solar BeamCharges in one turn

Core Partner Rankings

S
Flutter ManeFairyGhost
Protosynthesis Sun Resonance
Full Guide →

Koraidon's Orichalcum Pulse sets Sun automatically; Flutter Mane's Protosynthesis triggers in Sun to boost its highest stat (Sp.Atk) by 1.3× with no item cost. Flutter Mane is immune to Fake Out and Normal moves, covering Koraidon's weaknesses with near-zero overlap. Moonblast spread also pressures Dragon and Fighting threats that target Koraidon.

Recommended EVs
252 SpA / 4 SpD / 252 Spe · Timid
Recommended Item
Choice Specs / Life Orb
S
IncineroarFireDark
Fake Out Protection + Intimidate Defense Chain
Full Guide →

Fake Out gives Koraidon a free setup turn; Incineroar's Flare Blitz gains Sun's 1.5× boost as a bonus. Parting Shot lets Intimidate cycle by re-triggering on every switch, capping the opponent's physical offense across the entire game. Standard on virtually every top Koraidon team.

Recommended EVs
252 HP / 4 Atk / 252 SpD · Careful
Recommended Item
Sitrus Berry
A
Chi-YuFireDark
Beads of Ruin Sp.Def Drop × Sun Fire Boost Stacked
Full Guide →

Beads of Ruin lowers all non-Chi-Yu Sp.Def by 25%. Sun boosts Fire moves by a further 1.5×. Stacked, Chi-Yu's Fire output treats opponents' Sp.Def as roughly 56% of its real value — almost nothing survives. The two effects together without item cost create unmatched special Fire pressure alongside Koraidon's physical offense.

Recommended EVs
252 SpA / 4 SpD / 252 Spe · Timid
Recommended Item
Life Orb
A
AmoongussGrassPoison
Rage Powder Redirect Protects Attack Core
Full Guide →

Rage Powder redirects all opponent attacks to Amoonguss, letting Koraidon and Flutter Mane attack freely without being disrupted. Spore locks one opponent out of a turn. Grass typing is immune to spread Earthquake — Koraidon can use Earthquake without worrying about damaging Amoonguss.

Recommended EVs
252 HP / 140 Def / 116 SpD · Relaxed
Recommended Item
Sitrus Berry
A
TornadusFlying
Priority Tailwind × Sun Speed Control
Full Guide →

Prankster Tailwind doubles the entire team's Speed — Koraidon hits 183 and Flutter Mane 267 under Tailwind, outspeeding virtually everything. Tornadus also threatens Taunt to shut down opposing setup and Tailwind. Note: Hurricane's accuracy drops to 50% in Sun, so non-attacking Tornadus builds are preferable in sun archetypes.

Recommended EVs
252 HP / 4 SpD / 252 Spe · Timid
Recommended Item
Sitrus Berry / Mental Herb
A
Chien-PaoDarkIce
Sword of Ruin Defense Drop × Koraidon Physical Damage Amplified
Full Guide →

Sword of Ruin lowers all non-Chien-Pao Defense by 25%, directly boosting Koraidon's physical moves (Sacred Sword, Dragon Claw, Collision Course). The aura is passive and stackable with Intimidate debuffs — opponents can get down to 50% effective Defense before taking Koraidon's Sacred Sword.

Recommended EVs
252 Atk / 4 SpD / 252 Spe · Jolly
Recommended Item
Focus Sash / Life Orb

Standard Sun Team Core Example

Koraidon
Main Attacker / Sun Setter
Flutter Mane
Special Damage Core
Incineroar
Fake Out / Intimidate Support

These three form the immovable sun team core. The remaining three slots typically draw from Amoonguss (speed control), Chi-Yu (Beads of Ruin), Tornadus (Tailwind), and Chien-Pao (Sword of Ruin) — pick three based on the current meta and your preferred style.

Frequently Asked Questions

Who is the best partner for Koraidon in VGC?

Flutter Mane is the top pairing — Protosynthesis boosts Sp.Atk 1.3× in Sun, and Fake Out + Normal immunity means almost zero weakness overlap with Koraidon. Incineroar is the standard second pick on virtually every top Koraidon team for Fake Out + Intimidate protection.

What are the weaknesses of Koraidon sun teams?

Primary weaknesses: ①Kyogre Primordial Sea overrides Drought instantly; ②Rayquaza Air Lock suppresses all sun effects; ③Amoonguss Rage Powder redirects partner moves; ④Fairy spread (Moonblast) hits Koraidon's Fighting type. Counter-strategies: Chien-Pao Ice Shard vs Kyogre, Tornadus Taunt vs opposing Amoonguss.

Does Koraidon team need Incineroar?

Strongly recommended but not mandatory. Without Fake Out support, Koraidon is vulnerable to turn-one disruption. If skipping Incineroar, Whimsicott's Prankster Encore offers alternative disruption, or run a pure speed-offense build with Tailwind from Tornadus.

Related Guides