The Ultimate UTDX Relics Guide: Best Sets, Stats, and Farming Tips (2026)

Master the relic system in Universal Tower Defense X. Learn about rarities, stats, set bonuses, and the best relic sets for every unit.

Guide Type

Relics

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

Updated

2026-06-22

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Why UTDX Relics Are the Key to Dominating Every Match

If you want to push further into the hardest content in Universal Tower Defense X, you need to understand the relic system. Relics are not just a minor upgrade—they are the most important system for scaling your units. Whether you are a new player wondering where to start or a veteran looking to min-max your setups, this utdx relics guide will walk you through everything you need to know.

By the end of this guide, you will understand how relic rarities work, which main stats and substats to chase, and exactly which relic sets are worth farming. The relic system can feel overwhelming at first, but once you break it down, it becomes a straightforward path to massive power gains.

Relic Rarities: What Each Tier Offers

Relics come in five rarities, each with different maximum levels and substat slots. Higher rarity relics are exponentially stronger because they allow you to roll more substats and reach higher levels. Here is the breakdown from the official game wiki:

Rarity	Max Substats	Max Level	Notes
Rare	1	6	Basic starter relics
Epic	3	9	Decent mid-game options
Legendary	4	12	Strong and worth keeping
Mythic	5	15	Top-tier standard rarity
Raid	5	15	Uses star system + tag bonuses

The jump from Rare to Mythic is massive. A Mythic relic at level 15 will have five substat rolls compared to just one on a Rare. That means you can stack multiple damage, cooldown, or crit stats on a single piece. Raid relics take this even further with a star system that can push stats above Mythic levels.

Understanding Relic Types and Stats

Relics are divided into three types: Top, Bottom, and Accessory. Each type focuses on different stat categories. Equipping a Top and Bottom relic from the same family activates a set bonus, and some families also have an Accessory set bonus.

Main Stats at Max Level (Level 15)

Type	Main Stat	Max Value
Top	Damage	+60%
Top	Crit Damage	+120%
Top	DoT Damage	+75%
Top	Hyper Armor Damage	+100%
Bottom	Range	+30%
Bottom	Cooldown	-22.5%
Bottom	Damage	+60%
Bottom	Crit Rate	+37.5%
Accessory	Elemental Damage	+30%
Accessory	Buff Potency	+45%

The main stat you roll on a relic is fixed once you obtain it. For Top relics, Damage and Crit Damage are generally the most valuable. For Bottom relics, Cooldown reduction is often the priority, but Range can be game-changing for certain units.

Possible Substats for Each Relic Type

All three relic types can roll the same pool of substats, which makes farming for perfect rolls a real grind. Here are the substats available:

Damage
Cooldown
Range
Crit Rate
Crit Damage
DoT Damage
Buff Potency
Effect Resistance

The key is that substats are randomly assigned when you obtain the relic. You cannot reroll them, so finding a relic with the right main stat and useful substats is the ultimate goal.

Raid Relics: The Star System and Tag Bonuses

Raid relics are the only relics that use a star system. When you obtain a Raid relic, it will roll with 1, 2, or 3 stars. The star rating determines how much stronger the relic is compared to a Mythic baseline.

Stars	Chance	Bonus
1 Star	80%	Same stats as Mythic
2 Stars	15%	+2.5% stats above Mythic
3 Stars	5%	+5% stats above Mythic

Beyond the star system, Raid relics can have tag bonuses. For example, if a relic has the Peroxide tag and you equip it on a unit with the Peroxide tag, that unit receives the matching set buff. This opens up powerful synergy options for players who build teams around specific tags.

According to player experience, farming Raid relics is the endgame grind in UTDX. The 5% chance for a 3-star relic means you will spend a lot of time farming, but the payoff is massive when you finally land a perfect roll.

Best Relic Sets in Universal Tower Defense X

There are many relic sets in the game, each offering unique bonuses. Some sets are general-purpose, while others are designed for specific playstyles or unit tags. Here are the most notable sets based on the game's official data.

Sun God Set

Bonus Type	Effect
Top + Bottom	+5% Damage, +10% Light/Water/Ice Damage
Accessory	Every 6 attacks, gain damage buff equal to range for 7 seconds

This set is excellent for units that deal elemental damage. The Accessory bonus can scale incredibly high if your unit has a large range.

Berserk Shinigami Set

Bonus Type	Effect
Top + Bottom	+10% Dark/Fire/Rose/Light Damage
Accessory	Every 5 hits, next attack deals +20% True Damage ignoring resistances

True Damage is one of the strongest mechanics in the game because it bypasses enemy defenses. This set is a top contender for any unit that attacks quickly.

Reaper Relic Set

Bonus Type	Effect
Full Set	+2.5% Damage, +10% Range, +5% Crit Rate, +5% Crit Damage
Accessory	-7.5% Cooldown, +15% Range

The Reaper set also has tag-specific bonuses:

Tag	Bonus
Peroxide	+10% Damage, +5% Buff Potency, +8.5% Crit Damage
Reaper	+20% Hyper Armor Damage, +12.5% Armor Pen, +15% Range
Rage	+25% Crit Damage, +10% Crit Rate, +10% Range
Hollow	+12.5% Damage, -7.5% Cooldown, +15% Range

This set is versatile and works well with many different units, especially those with the Reaper or Rage tags.

Shadow Reaper Set

Bonus Type	Effect
Full Set	+7.5% Cooldown, +15% Range
Accessory	+2.5% Damage, +10% Range, +5% Crit Rate, +5% Crit Damage

Tag perks for Shadow Reaper:

Tag	Bonus
Peroxide	+10% Armor Pen, +15% Hyper Armor Damage, -10% Cooldown
Reaper	+30% Elemental Damage, -12.5% Cooldown, -5% Damage
Rage	+15% Elemental Damage, -8.5% Cooldown, +10% Buff Potency
Hollow	+20% Crit Rate, +12.5% Crit Damage, +5% Hyper Armor Damage

The Shadow Reaper set trades some raw damage for massive cooldown reduction and range. It is ideal for support units or units that rely on ability uptime.

Rebellious Shinobi Set

Bonus Type	Effect
Top + Bottom	On crowd control application, gain +30% damage for 10 seconds
Accessory	On form/ mode swap, permanently gain +5% damage (stacks 6 times)

Tag perks for Top + Bottom:

Tag	Bonus
Ninjaverse	+20% Elemental Damage, +15% Crit Rate, +20% Crit Damage
Sage	+15% Elemental Damage, +20% Hyper Armor Damage

Accessory tag perk:

Tag	Bonus
Bloodline	+15% Elemental Damage, +15% Damage, +20% Range

This set rewards units that can apply crowd control or swap forms. The permanent damage stacking from the Accessory bonus is incredibly strong over long fights.

How to Choose the Right Relic Set for Your Units

When building your loadout, consider these factors:

Unit role: Damage dealers want Crit Damage and Damage main stats. Supports want Cooldown and Buff Potency.
Elemental effectiveness: If a unit is effective against an enemy, it deals +30% damage. Relics that boost elemental damage stack with this bonus.
Tag synergy: Raid relics with matching tags can provide massive additional bonuses.
Set bonuses: Always try to equip a Top and Bottom from the same family to activate the set bonus. The Accessory piece is optional but highly recommended.

A common strategy reported by the community is to prioritize Cooldown reduction on Bottom relics for most units, since faster attacks mean more damage over time. However, for units with long base range, stacking Range can allow them to hit enemies from safety.

Frequently Asked Questions

What is the best relic rarity to aim for in UTDX? Mythic and Raid relics are the best. Mythic relics offer five substats and a max level of 15. Raid relics can go even higher with the star system and offer tag bonuses for extra synergy.

How do I get Raid relics in Universal Tower Defense X? Raid relics are obtained from raid content in the game. According to the official wiki, they are the only relics that use the star system and tag bonuses. Focus on farming raids to get these endgame relics.

Can I reroll substats on my relics? No, substats are fixed when you obtain the relic. You cannot reroll them, so farming for the right combination of main stat and substats is essential. This utdx relics guide recommends keeping any relic with at least three useful substats.

What does SPA mean in relic descriptions? SPA stands for "seconds per attack," which is the cooldown between attacks. Lower SPA means faster attacks. Some relic sets, like Bio-Android, reduce SPA for faster damage output.

Final Thoughts on Mastering the Relic System

The relic system in Universal Tower Defense X is deep and rewarding. By understanding rarities, main stats, substats, and set bonuses, you can dramatically increase your unit's effectiveness. Whether you are farming for a perfect Mythic piece or chasing 3-star Raid relics with ideal tags, every upgrade matters.

For more official details, check out the Universal Tower Defense X Wiki on Fandom for the most up-to-date information on relic sets and mechanics. Use this utdx relics guide as your roadmap, and you will be clearing harder content in no time.