11Priority traits
0.1%Ruler listed chance
16Total traits
Unit firstReroll rule

Fast rule: pick the unit first, then chase the trait. Rerolling a weak or temporary unit wastes scarce Trait Reroll Stones even if the trait itself is strong.

Best trait priority table

Priority is based on listed effect strength, rarity, and whether strong imported unit rows already recommend the trait.

TraitChanceWhy it mattersBest fit
Ruler
Mythic
0.1% +200% Damage, -20% Cooldown, +30% Range, 1 unit limit The Strongest in History, The Strongest of Today, Jinoo, Shadow Monarch, Mimicry Sorcerer (Cursed Love), Shadow Knight (Risen), Ancient Mage (Slayer)
Eternal
Mythic
0.2% -20% Cooldown, +2% Damage per wave (50% cap), +1% Range per wave Crow Shinobi (Reanimated), Karbonoto (Sage), Gen, Masked Ninja
Fission
Mythic
0.15% +15% Damage, -15% Cooldown, +25% Range, inflicts Radiation DoT Prodigy Mage (Apprentice)
Sacred
Legendary
0.3% +25% Damage, -10% Cooldowns, +25% Range, -15% Cost High-value trait. Review unit fit before rerolling.
Astral
Legendary
0.45% +20% Affliction Duration, -20% Cooldowns, +15% Range, stacking DoT, 1 unit limit Devil Hunter (Mercenary), Spade (Donut)
Duelist
Epic
0.8% +25% Crit Rate, +20% Range, +35% Boss Damage Alpha Devil (Omega)
Wizard
Epic
0.5% +30% DoT Damage, -15% Cooldowns, +20% Range Sasku (Chakra)
Artificer
Epic
0.65% Relic stat gains increased by 15% Pebble
Lightspeed
Rare
1.5% -20% Cooldown Useful mid-tier trait. Stronger on the right role than as a universal goal.
Deadeye
Rare
2.5% +20% Range Useful mid-tier trait. Stronger on the right role than as a universal goal.
Fortunate
Rare
1% +20% Income Bulmo, Fastcart

Universal Tower Defense X Best Traits FAQ

Short answers for trait priority and reroll risk.

What is the best trait in Universal Tower Defense X?

Ruler is the highest-impact listed mythic trait for many carry units because the source-backed table lists a large damage, cooldown, and range package. It is still not automatic for every unit because it has a one-unit limit.

Should I reroll until I get Ruler?

Only on a long-term carry. The listed Ruler chance is 0.1%, so spending rerolls on a temporary unit is a bad resource trade.

Are support traits different from DPS traits?

Yes. Cooldown, range, income, or affliction effects can matter more on support and utility units than pure damage.