
United Workers' Syndicates of Talos II
Main Strength · Sub Intellect
Alesh is a Cryo and Physical SP battery who can force-convert Cold application into the infliction chain Physical teams want. He shows up as a budget or alternate enabler — including some Yvonne-adjacent fills — rather than a must-own setup piece like Chen Qianyu or Lifeng. Pull only when your Physical or Cryo team is missing SP routing and the better enablers are not on banner; he is not skip-forever, but he is not a banner destination either.
Alesh is a 5★ Cryo Flex (Sword). Alesh wants to consume Cryo Infliction as much as he can in order to restore SP, and buff the team and providing Solidification on demand.
Weapon
Finchaser 3.0
Finchaser 3.0 is Alesh's signature weapon, and will likely be a better pick than the below 6-star option despite the difference in rarity. It is a simple yet effective weapon, applying a Cryo damage increase to the target when applying Solidification with his Battle Skill.
Gear Set
Frontiers
Frontiers is the best set for Alesh, providing all the attributes he needs. It also grants a team-wide damage boost after recovering SP, which is one of the reasons you are playing Alesh in the first place.
Main Stats
Body Strength · Hands CRIT / Cryo DMG · Kits Arts Intensity / Cryo DMG
Priority
Substats
Strength > Arts Intensity > HP%
Priority

Frontiers Armor
Strength, Intellect, Ultimate DMG bonus

Redeemer Gloves
Strength, All Skill DMG Dealt bonus

Frontiers Extra O2 Tube
Strength, Intellect, Cryo & Electric DMG

Frontiers Extra O2 Tube
Strength, Intellect, Cryo & Electric DMG
Prioritize leveling Alesh's Combo Skill and Basic Skill, as they will be your main source.
Level after higher priorities — supports the battle skill role in the rotation.
Level after higher priorities — supports the ultimate role in the rotation.
Level after higher priorities — supports the basic attack role in the rotation.
Alesh wants to consume Cryo Infliction as much as he can in order to restore SP, and buff the team and providing Solidification on demand.
He will generally be the second character you use your Battle Skill on, requiring another Operator to apply Cryo Infliction first, before he can follow up with a Battle Skill of his own.
Use these notes as the operator priority order inside the comps above.

Strength Boost [M] · Cryo DMG Boost [M]
ATK +5/9/14%. When the wielder's battle skill applies Solidification, target enemy suffers Cryo DMG Taken +7/12.6/19.6% for 15.00s. Effects of the same name cannot stack.
Why it works —Finchaser 3.0 is Alesh's signature weapon, and will likely be a better pick than the below 6-star option despite the difference in rarity. It is a simple yet effective weapon, applying a Cryo damage increase to the target when applying Solidification with his Battle Skill.

Will Boost [L] · Attack Boost [L]
ATK +10/18/28%. After the wielder's skill recovers SP or grants a Link state, the entire team gains ATK +5/9/14% for 20.00s. Max stacks for effects of the same name: 2.00. Duration of each stack is counted separately.
Why it works —It may be surprising, but Thermite Cutter could be quite useful on Alesh despite not matching his Main or Secondary attribute. His SP restoration on his Battle Skill will allow him to grant the buff of the weapon to the team, further boosting his ability to not only generate resources for the team, but also boost their damage.

Frontiers is Alesh's best set. It covers the Strength/Intellect he wants and turns his frequent SP recovery into a team-wide DMG buff — the exact reason you field him as a Vanguard.

Frontiers Armor
Strength, Intellect, Ultimate DMG bonus

Redeemer Gloves
Strength, All Skill DMG Dealt bonus

Frontiers Extra O2 Tube
Strength, Intellect, Cryo & Electric DMG

Frontiers Extra O2 Tube
Strength, Intellect, Cryo & Electric DMG

Mordvolt Insulation bridges the gap while you farm Frontiers. It keeps Cryo/Electric Arts damage respectable without the SP-recovery team aura.

Mordvolt Insulation Vest
Intellect, Strength, HP% <strong

Mordvolt Insulation Gloves
Intellect, Strength, ATK/li> <strong

Mordvolt Insulation Wrench
Intellect, Cryo & Electric DMG <strong

Mordvolt Insulation Battery
Intellect, ATK% Alesh's Skill Priority Skill Priority: <span class="end
Alesh SP battery in a Yvonne Cryo shell — Estella enables, Xaihi amps, Alesh keeps skills available.
Yvonne is a Cryo Arts carry who lives in Basic Attack and Ult loops. Beside Alesh, she is a second damage pillar in the Cryo/Arts lane.
Estella bridges Cryo Infliction into Physical Susceptibility. Use her when Alesh's lane wants a cheap Cryo/Physical enabler rather than a full premium buffer.

Alesh is the SP battery — force Cold conversions and keep recoveries flowing so the carry's skills stay available.
Xaihi is the Cryo/Arts buffer seat — Amp from Battle Skill and team Cryo/Nature amp from Ultimate so Alesh's damage windows are actually buffed.
BASIC ATTACK: An attack with up to 5 sequences that deals Physical DMG. As the controlled operator, Final Strike also deals 17 Stagger. DIVE ATTACK: Basic attack performed in mid-air becomes a dive attack that deals Physical DMG to nearby enemies. FINISHER: Basic attack performed near a Staggered enemy becomes a finisher attack that deals massive Physical DMG and recovers some SP.
SKILL DESCRIPTION: Hooks a block of ice and slams it to deal Physical DMG to the enemy target. When hitting a target with Cryo Infliction, Alesh consumes all of the target's Cryo Infliction stacks, forcibly applies Solidification to the target, and recovers some SP based on the number of stacks consumed. This SP recovery effect can only trigger 1 time, even if the skill hits multiple enemies.
COMBO TRIGGER: When the Arts Reaction or Originium Crystals of a nearby target is consumed. SKILL DESCRIPTION: Opens an angling hole beneath the enemy that deals Physical DMG and recovers some SP. The skill has a chance to hook a Rare Fin that greatly increases the DMG dealt and recovers some more SP.
SKILL DESCRIPTION: Alesh hooks a fin of unbelievable size and slams it to deal Cryo DMG and apply Cryo Infliction to enemies in a large area of effect in front of him. He recovers some SP on hit, with additional SP gained for each target defeated.
Operator Strength +20.
After Solidification or Originium Crystals are applied to a nearby enemy, Alesh gains 4 Ultimate Energy. If the said Solidification is applied by Alesh, he gains an additional 8 Ultimate Energy. This effect can only trigger once every 3s.
Combo skill Auger Angling improved: Every 10 Intellect grants Rare Fin catching chance +0.5% (max: +30%).
Battle skill Unconventional Lure improved: SP Recovery grants an additional 10 SP.
Is it worth getting?
Nice quality-of-life node. Keep if free; do not spend special pulls chasing it.
Strength +15, Intellect +15.
Is it worth getting?
Nice quality-of-life node. Keep if free; do not spend special pulls chasing it.
Combo skill Auger Angling improved: After catching a Rare Fin, the entire team gains ATK +15% for 10s. This effect cannot stack.
Is it worth getting?
Meaningful combat spike if you are committing copies; not mandatory for clearing.
Ultimate One Monster Catch! improved: Ultimate Energy cost -15%.
Is it worth getting?
Meaningful combat spike if you are committing copies; not mandatory for clearing.
Ultimate One Monster Catch! improved: Hitting a target below 50% HP increases the DMG Multiplier to 1.5 times the original.
Is it worth getting?
Solid damage / uptime node. Grab it when duplicates show up; do not hard-pity for it.
P0 is fully usable — potentials are damage / comfort spikes, not hard gates. Endgame target: P5.
Not sure Alesh is right for you? Compare against similar Operators to find your best pull.

You need a Heat Support Operator and Akekuri's kit matches your account gap.

You need a Electric Support Operator and Antal's kit matches your account gap.

You need a Electric Support Operator and Arclight's kit matches your account gap.

You need a Nature Support Operator and Ardelia's kit matches your account gap.

You need a Heat Support Operator and Camille's kit matches your account gap.

You need a Physical Support Operator and Chen Qianyu's kit matches your account gap.

You need a Nature Support Operator and Gilberta's kit matches your account gap.

You need a Physical Support Operator and Lifeng's kit matches your account gap.

You need a Electric Support Operator and Perlica's kit matches your account gap.

You need a Physical Support Operator and Pogranichnik's kit matches your account gap.

You need a Cryo Support Operator and Xaihi's kit matches your account gap.