Back to Wiki

Universal Tower Defense Units

Unit types, rarities, progression, and secret units

Unit Types & Roles
Understanding the five unit classifications
Hybrid
Hybrid Units

Can attack both ground and air enemies. Most versatile unit type.

Top Units:

  • Berserker (Enraged)
  • Jinoo (Monarch)
  • Dragon Silver
  • Admiral Magma
Ground
Ground Units

Specialized for high damage against ground enemies only.

Top Units:

  • Kriatu (Cheater)
  • Ronin Obito
  • Rule (ROOM)
  • Sasku (Chakra)
Air/Hill
Air/Hill Units

Can be placed on hills and attack air enemies. Essential for defense.

Top Units:

  • Spade (Donut)
  • Cyborg (Fearless)
  • Zora (Beginner)
Support
Support Units

Buff allies, debuff enemies, or provide utility effects.

Key Features:

  • Damage amplification
  • Enemy stuns/slows
  • Unit spawning
  • Special effects
Farm
Farm Units

Specialized units designed to generate money for summoning more units.

Purpose:

  • Generate in-game currency
  • Enable expensive units
  • Early game essential
Unit Rarities

Units come in 5 rarity tiers:

  • SecretRarest & Most Powerful
  • MythicVery Rare & Strong
  • LegendaryRare & Powerful
  • RareUncommon
  • CommonBasic Units
Unit Progression System
How to strengthen your units

Leveling Up

Use experience items or play through stages to level up your units. Higher levels increase base stats and unlock new abilities. Units gain Stat Points when leveling up, which can be allocated to cooldown, range, or damage.

Evolution

Evolve units using specific materials to transform them into more powerful versions with enhanced abilities and stats. Some units like Jinoo require craftable materials (Demon King's Daggers, Shadow Token Mythic).

Trait Rerolling

Use trait reroll items to randomize unit traits. Aim for high-tier traits like Ruler, Eternal, or Sacred for maximum power. Farm Featured Challenges regularly for sustainable reroll sources.

Stat Optimization

Reroll unit stats to improve their grade. Higher grades provide better base stats and scaling throughout the game. For damage dealers, prioritize cooldown; for buff units like Miku, prioritize range.

Stat Points Allocation

When units level up, they gain Stat Points that can be allocated to cooldown, range, or damage. For most damage dealers, spamming cooldown is often beneficial as it directly impacts DPS. For buff units like Virtual Idol (Miku), range is usually preferred to buff more allies simultaneously.

Etherealization System

Etherealization allows you to fuse duplicate units to unlock new passives, giving your units unique abilities and further boosting their power. Each star provides unique buffs. Always etherealize duplicate units instead of selling them! For example, Fastcart gains increased income percentage, while damage units like Cyborg Disciple receive boosts to their core stats.

Secret UnitsRarest and most powerful units
How to Obtain Secret Units
Jinoo, Ragna, and Lelouch acquisition methods

Jinoo (Sung Jin Woo)

Available from Special Banner in Summoning area. Requires Level 10+ with 0.000625% drop chance.

Evolution: Requires 2x Demon King's Daggers (Secret) + 1x Shadow Token Mythic (craftable).

Ragna (Dragon Guy)

Obtained from Featured Challenge: "Act 1 Frozen Stronghold: The Hunt" in Special portal. 2% drop chance with pity system after 75 runs.

Evolution: Uses standard generic materials (not specific rare drops).

Lelouch (Big Bro)

Epic questline "Power Of Kings!" under Personal tab. Requires Level 30, chess game victory, 80 waves completion, 15 boss kills, 75 relic upgrades, and 5,000 unit placements.

Quest Steps: Find Mysterious Witch → Help distressed subject → Win chess game → Complete endurance trials.