Kirito appears in Universal Tower Defense X as the Mythic unit Kriatu (Cheater), and the unit leans hard into critical hits. The strongest setup focuses on crit damage scaling backed by a low cooldown, so the unit fires often and lands heavy crits each time. Below is the precise build to run, the relic perks behind it, and how to confirm it is working.
Quick answer: Run Kriatu (Cheater) with the Duelist trait, put stat points into Cooldown, and equip Sun God on the head with Elemental Damage, Ex Capt. Uraharo on the body with Critical Damage, and Ex Capt. Uraharo on the legs with Damage.

Kirito (Kriatu Cheater) build: trait, relics, and stats
| Slot | Choice | Main stat |
|---|---|---|
| Trait | Duelist | — |
| Stat points | Cooldown | — |
| Head | Sun God | Elemental Damage |
| Body | Ex Capt. Uraharo | Critical Damage |
| Legs | Ex Capt. Uraharo | Damage |
You can grab the unit and test the build directly in the game on its Roblox page.
Why Duelist and Cooldown fit Kirito
Duelist is the recommended trait for Kriatu (Cheater) because the unit’s damage comes from frequent, crit-driven hits rather than stacked damage-over-time. Traits like Astral favor units with many DoT stacks and low cooldown, while Ruler suits units with one or two placements. Kirito sits outside both of those profiles, so Duelist is the better match.
For stat points, Cooldown is the pick. Percentage gains across stats are fairly even, so reducing cooldown gives more attacks per second and more chances to crit. That keeps the crit-focused relic perks active more often.

Ex Captain and Sun God relic perks
Two Ex Capt. Uraharo pieces give the Ex Captain set bonus, which is built for crit. The head uses a Sun God piece purely for its Elemental Damage main stat, so the build mixes a crit core with extra elemental scaling.
| Set | Top + Bottom perk | Accessory perk |
|---|---|---|
| Ex Captain | +10% Critical Rate, +25% Critical Damage | Refunds 5% of yen spent on upgrades |
| Sun God | +5% Damage, +10% Light, Water, Ice Damage | Every 6 attacks, damage buff equal to range (1 range = 1% damage) for 7 seconds |
The Ex Captain crit rate and crit damage stack with the body slot’s Critical Damage main stat, which feeds the unit’s crit-based passive. The legs slot’s flat Damage rounds out raw output.
Relic main stat caps to aim for
Mythic relics reach max level 15 with up to five substats. Hit these caps on the matching slots so the build performs at full strength.
| Slot | Stat | Cap (Lv.15) |
|---|---|---|
| Top (Body) | Crit Damage | +120% |
| Top (Body) | Damage | +60% |
| Bottom (Legs) | Damage | +60% |
| Bottom (Legs) | Cooldown | -22.5% |
| Accessory (Head) | Elemental Damage | +30% |
Keep clean main stats before chasing perfect set effects. For substats, prioritize crit rate, crit damage, and damage so every hit benefits from the crit core.

Exclusive relics and how they work
Character-exclusive relics are tied to specific units rather than the standard sets, and they carry strong stat buffs. Kirito’s optimal setup does not use one of these, but it helps to know what exists and where it drops if you build around other units later.
| Exclusive relic | Source | Stat buff |
|---|---|---|
| Tierabel Mask | Top of Hueco Castle Act 1 (Bleach Raid) | +100% DMG |
| Dragon Guy Halo | Frozen Stronghold featured challenge | +100% DMG |
| Scarlet Maid Plushie | Virtual Realm Shop | +30% DMG, +30% RNG |
| Shunks Hat | Marine Base legend stage Act 3 | +100% DMG |
How to confirm the build is active
Relic rerolling sits behind the evolution NPC, and locking a stat adds one Relic Reroll cost per roll. If your crit damage feels low, level the body relic to its +120% cap first, then refine substats toward crit rate and crit damage to keep Kirito hitting hard across Nightmare, Infinite, and Virtual Realm runs.






