Universal Tower Defense X Relics and Traits Guide: Best Builds & Farming Tips

Master Universal Tower Defense X relics and traits. Learn how to roll, upgrade, and equip the best relics and traits for your units.

Guide Type

Relics

Use this page as a focused reference before reading the full guide.

Updated

2026-06-22

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Why Relics and Traits Matter in Universal Tower Defense X

If you’ve been grinding in Universal Tower Defense X, you already know that raw unit stats only get you so far. To truly dominate in Raids, Story Mode, and the Virtual Realm, you need to optimize your universal tower defense x relics and traits. These two systems provide massive multiplicative and additive boosts that can turn a decent unit into an absolute powerhouse. Ignoring them means leaving damage, cooldown reduction, and range bonuses on the table.

This guide breaks down exactly how relics and traits work, how to farm them efficiently, and how to build the perfect setup for any game mode. Whether you’re a new player wondering where to start or a veteran looking to min-max, we’ve got you covered.


Understanding Relic Rarities and Sub-Stats

Relics in Universal Tower Defense X come in five main rarities: Rare, Epic, Legendary, Mythic, and Raid. The higher the rarity, the more sub-stats you can unlock and the higher you can upgrade them. This directly impacts how much extra power you can squeeze out of each relic slot.

Relic Rarity Breakdown

RarityMax Sub-StatsMax Upgrade LevelUpgrade Cost Range (Gold)
Rare2650 – 1,000
Epic3950 – 2,600
Legendary41250 – 4,900
Mythic51550 – 7,900
RaidVaries (1-3 stars)SpecialSpecial

Key takeaway: Mythic relics are your endgame goal because they offer the most sub-stats and the highest upgrade ceiling. However, don’t sleep on a well-rolled Legendary relic if you’re still farming for Mythics.

Upgrade Cost Progression

The gold cost to upgrade relics follows a steep curve. Here’s the full sequence (in gold) for each upgrade level:

50 → 150 → 350 → 650 → 1,000 → 1,400 → 2,000 → 2,600 → 3,300 → 4,000 → 4,900 → 5,800 → 6,800 → 7,900

That’s a total of over 40,000 gold to max out a single Mythic relic. Plan your gold spending wisely.


Relic Types and Set Bonuses

Relics are divided into three equipment slots: Top, Bottom, and Accessory. Each slot can hold one relic, and equipping pieces from the same set unlocks powerful set bonuses.

How Set Bonuses Work

  • Top + Bottom: Equipping both pieces from the same set activates a unique set bonus.
  • Accessory: Accessories activate their set bonus independently, regardless of the other two slots.
  • Raid Rarity Relics: These come with a star system (1–3 stars) and Tag bonuses. For example, a relic with the “peroxide” tag will grant a set buff if equipped on a unit with the same tag.

Where to Get Each Type

Relic TypeSource
TopStory Mode
BottomStory Mode
AccessoryVirtual Realm

Pro tip: Farm Virtual Realm for accessories first, then move to Story Mode for Top and Bottom pieces. This gives you a balanced relic setup faster.


How to Roll and Upgrade Traits

Traits are a separate system that adds a flat damage buff to your unit’s base damage. Unlike relics, traits are rolled directly on units and can be rerolled at the Karoli & Justi NPC in the Upgrades area of the Lobby.

Trait Rolling Mechanics

  • Cost: Each reroll costs gold (amount varies by rarity).
  • Mythic Trait Pity: Every Mythic trait has a 1.25x pity multiplier. For example, the “Ruler” trait has a pity of 1,250 rerolls.
  • Stat Transfer Warning: If you transfer stats from one unit to another, the source unit loses all its traits and is reset to level 1 with F-rank stats.

Best Practices for Trait Farming

  1. Focus on Mythic traits first – they provide the largest damage boost.
  2. Use gold efficiently – don’t reroll traits on units you plan to replace.
  3. Stack traits with relics – a unit with a maxed Mythic relic and a high-tier trait will out-damage anything else in your roster.

Best Relic and Trait Combinations for Each Game Mode

Different game modes in Universal Tower Defense X reward different playstyles. Here’s how to tailor your relics and traits for maximum effectiveness.

Story Mode and Legend Mode

These modes are all about consistent damage and crowd control. Prioritize relics that boost Attack and Cooldown sub-stats.

SlotRecommended Relic SetSub-Stat Priority
TopAny with Attack %Attack > Cooldown > Range
BottomAny with Cooldown %Cooldown > Attack > Range
AccessoryAny with Attack %Attack > Cooldown

Trait recommendation: Ruler (Mythic) for raw damage or a Specialist trait for niche utility.

Raids and Ultra Boss

Boss fights require burst damage and survivability. Look for relics with Range and Cooldown to keep your units firing non-stop.

SlotRecommended Relic SetSub-Stat Priority
TopRaid rarity with Tag bonus matching your unitAttack > Range
BottomRaid rarity with Tag bonus matching your unitCooldown > Attack
AccessoryAny with Cooldown %Cooldown > Attack

Trait recommendation: A Mythic trait with a damage multiplier works best here.

Virtual Realm and World Raid

These modes often feature waves of enemies with mixed elements. Versatility is key.

SlotRecommended Relic SetSub-Stat Priority
TopAny with balanced sub-statsAttack = Cooldown
BottomAny with balanced sub-statsCooldown = Attack
AccessoryAny with Range %Range > Attack

Trait recommendation: A Utility trait that applies debuffs (like Radiation or Slow) can help control the battlefield.


Farming Guide: Where to Get the Best Relics and Traits

Efficient farming is the backbone of any endgame build. Here’s a quick reference for the best sources.

Relic Farming

ModeDrops
Story Mode (Ninja Forest, Marine Base)Top and Bottom relics (Rare to Mythic)
Virtual RealmAccessory relics (Rare to Mythic)
Raids (Top of Hueco Castle, Shinobi Battlefield)Raid rarity relics (1–3 stars)
World Raid (Ant Invasion, Beasts Place)Raid rarity relics and Universal Gems

Trait Farming

MethodEfficiency
Rerolling at Karoli & JustiBest for Mythic traits (use gold wisely)
Fusing unitsGrants XP, but no direct trait drops
Completing stagesSlow but steady gold income for rerolls

Community insight: Many players report that farming Virtual Realm on repeat is the most reliable way to get high-rarity accessories. Save your gold for Mythic trait rerolls rather than wasting it on lower-tier traits.


Advanced Tips for Min-Maxing

Once you have a solid relic and trait setup, you can push your units even further with these advanced strategies.

Stat Transfer Strategy

If you roll a perfect SSS-rank stat on a unit you don’t use, transfer it to your main unit. The cost is steep (100,000 Gold for SSS rank), but it’s worth it for a permanent damage boost. Just remember: the source unit loses all traits and resets to level 1.

Elemental Combat Synergy

Don’t forget that elements play a huge role in damage output. A unit with a 1.5x elemental advantage will benefit even more from high-rolled relics. Pair your relic setup with the correct element for maximum efficiency.

Etherealizing for Extra Stat Points

Etherealizing your unit at levels 1, 3, and 5 grants an extra 10 stat points each (30 total). These points can be invested into Attack, Cooldown, or Range, further amplifying your relic and trait bonuses.


Frequently Asked Questions

What are the best universal tower defense x relics and traits for beginners?

Start with Rare and Epic relics from Story Mode. Focus on Attack and Cooldown sub-stats. For traits, reroll until you get at least a Legendary trait on your main DPS unit. Don’t waste gold on Mythic traits until you have a steady income.

How do I get Raid rarity relics?

Raid rarity relics drop exclusively from Raid modes like Top of Hueco Castle and Shinobi Battlefield, as well as World Raids (Ant Invasion, Beasts Place). They come with a star system (1–3 stars) and Tag bonuses.

Can I transfer traits between units?

No, traits cannot be transferred. However, you can transfer stat ranks (letter grades like S, SS, SSS) using the Stats Transfer feature at Karoli & Justi. The source unit will lose all its traits and reset to level 1.

What’s the fastest way to farm gold for relic upgrades?

The most efficient gold farm is running the highest-difficulty Story Mode stage you can clear quickly. Combine this with selling unwanted relics and completing daily challenges for a steady gold income.


Final Thoughts

Mastering universal tower defense x relics and traits is the key to unlocking your team’s full potential. By understanding relic rarities, set bonuses, trait rolling mechanics, and the best farming strategies, you can build a lineup that crushes every game mode. Remember to prioritize Mythic relics and traits for endgame content, and always keep an eye on your gold spending.

For the latest updates and community discussions, check out the official Universal Tower Defense X Wiki. Happy grinding, and may your rolls always be SSS!