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Gen 9 Ubers (banned in OU) · Best moveset

Chi Yu

DarkFire Tera Fire Timid

By the pokemons.io team · Tested in Gen 9 Ubers (banned in OU) · Last updated May 2026

Beads of Ruin lowers opposing SpDef by 25%. Ubers-banned.

Chi Yu

Base stats · 570 BST

HP
55
Atk
80
Def
80
SpA
135
SpD
120
Spe
100

The build

Item

Choice Scarf

Ability

Beads of Ruin

Tera type

Fire

Nature · EVs

Timid · 4 HP / 252 SpA / 252 Spe

Moves

⚔️ Overheat
⚔️ Dark Pulse
⚔️ Psychic
⚔️ Memento

Showdown export

Chi Yu @ Choice Scarf
Ability: Beads of Ruin
Tera Type: Fire
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Overheat
- Dark Pulse
- Psychic
- Memento

Overview

Chi-Yu is banned from OU but dominates Ubers. Beads of Ruin lowers all opposing SpDef by 25%, making Chi-Yu's Specs/Scarf Overheat a near-guaranteed 2HKO on neutral targets. At base 100 Speed, Scarf gives it 459 Spe (level 100) — outspeeds most unboosted Pokémon. Memento provides emergency Atk/SpA debuff on switch out.

Move analysis

Overheat is the nuke (130 BP, drops SpA after, but Scarf locks in next move). Dark Pulse for Ghost/Psychic types. Psychic for opposing Fire-types. Memento as a free turn to switch in a setup sweeper.

Team partners

Calyrex-Shadow (uses Beads of Ruin to KO walls), Zacian-Crowned (Tera Steel partner), Eternatus (status-soaker).

What beats Chi Yu

Heatran (Flash Fire), Iron Hands Drain Punch, Tera Ground bulky walls, Calm Mind Necrozma walls.

How to use the build

Open our damage calculator and plug in the EV spread above to see what Chi Yu OHKOs and 2HKOs against the current OU/VGC meta. Drop Chi Yu into the team builder to check defensive coverage gaps when paired with your other 5 slots.

Other Dark/Fire options

If you want to run a different Dark-type, browse our competitive builds hub. For more on Tera mechanics, see the damage calculator's Tera explainer and our guide on type matchups.