Universal Tower Defense X runs on a roster of anime-inspired units split across rarity tiers, each with distinct passives, elements, and placement roles. Update 3 Part 1: Clash of Wills layered in a wave of One Piece characters and reshuffled the meta, so the unit pool now spans Rare farm helpers all the way up to Boundless evolutions like The Strongest in History.
Unit roles and placement types
Every unit fits one of five placement roles, and that role decides which enemies it can hit and where you can drop it on the map. Knowing the role matters more than raw rarity when you're building a team.
| Role | What it does |
|---|---|
| Ground | Standard placement that targets ground enemies along the path. |
| Hill | Placed on elevated tiles; usually long range, hits both air and ground. |
| Hybrid | Flexible placement that handles both air and ground targets. |
| Support | Buffs allies or debuffs enemies rather than dealing primary damage. |
| Farm | Generates extra cash during a match instead of fighting. |
Rare units
Rare units form the early-game backbone. They're cheap to summon and useful for clearing story stages before stronger pulls show up.
| Unit | Element / Role | Key ability |
|---|---|---|
| Nutaru (Kid) | Water / Ground | 17% base crit chance; gains +30% attack and range near any Sasku at Etherealization 6. |
| Namo | Water / Ground | Places a bounty on a target; killing it pays out 3x yen. |
| Roku | Fire / Ground | Stacks +5% damage per attack, resets at the start of every new wave. |
| Gaaru | Water / Ground | Permanently immune to stun damage. |
| Laffy | Wind / Ground | +10% range for each unique Pirate Crew unit on the team. |
| Ranji | Wind / Ground | +1% attack on each unit attack, capped at +10%. |
| Orahemi | Rose / Hill | At max upgrade, shields one nearby unit from stun damage. |
Epic units
Epics start filling specific niches: team buffs, crit support, and the all-important Fastcart farm option.
| Unit | Element / Role | Key ability |
|---|---|---|
| Nejo | Wind / Ground | Grants allies in range +5% crit chance. |
| Masked Ninja (Kakashi) | Fire / Ground | +12% range and damage to every Team 7 unit on the field. |
| Fire Foot Cook (Sanji) | Fire / Ground | +25% damage to enemies suffering Burn. |
| Triple Threat (Zoro) | Rose / Ground | +2% damage per enemy hit up to 20%; decays by 10% each wave. |
| Fastcart (Speedwagon) | Rose / Farm | Each unit placed while Fastcart is on the field cuts his next upgrade cost by 5%. |
Legendary units
Legendaries are where damage output starts mattering. Bulmo is the staple farm pick at this tier, while units like Pebble and Greybeard handle real DPS work.
| Unit | Element / Role | Key ability |
|---|---|---|
| Zorus (Zora) | Dark / Ground | Places up to 3 traps: stun for 3s or apply 20% Radiation. |
| Gen (Gin Ichimaru) | Fire / Ground | Gains +1% attack for every point of range he has. |
| Ruka (Rukia) | Ice / Ground | +20% damage to Frozen enemies. |
| Pebble (Rock Lee) | Rose / Hybrid | +0.5% attack per knockback applied, up to 40%. |
| Greybeard (Blackbeard) | Dark / Ground | +65% damage to Armored enemies. |
| Bulmo (Bulma) | Fire / Farm | 5% chance per wave to gain a Wish Ball; 7 summons Shenlong for coins, damage, or crit buffs. Emergency Capsule stuns units to scale payouts. |
Mythic units
Mythics are where most competitive teams live. Spade is currently the top Hill DPS, especially paired with the Flaming Donut Hat relic, and Super Roku functions as both a placement-shifting nuker and a relic source.
| Unit | Element / Role | Key ability |
|---|---|---|
| Shakumira (Shikamaru) | Light / Ground | +0.10–0.15% range per slowed enemy, capping at +20–25%. |
| Admiral (Akainu) | Fire / Ground | Leaves 5s lava puddles that confuse enemies for 2s on contact. |
| Scarlet Maid (Sakuya) | Light / Hybrid | Stops time, stuns enemies, and self-buffs damage via a kill-charged gauge. |
| Spade (Ace) | Fire / Hill | Applies Burn for 60% damage over 4s and bypasses armor damage reduction. |
| Rule (Law) | Water / Ground | +20% damage and +10% cooldown on tagged enemies. |
| Shunks (Shanks) | Rose / Ground | +20% damage to allies in range when a boss spawns; immune to stun. |
| Virtual Idol (Miku) | Light / Hybrid | Choose Damage or Range track to buff allies up to +10%. |
| Sasku (Sasuke) | Dark / Ground | 50% chance to stun on hit; 50% chance to dodge attacks. |
| Mob | Rose / Ground | Applies wind shear on every hit; confused enemies take more damage. |
| Kriatu (Kirito) | Ice / Ground | Fixed 30% crit rate; follow-up attacks at 15 and 50 crit milestones. |
| Cyborg Disciple (Genos) | Fire / Hill | Applies Burn; repeated hits on burning targets stack up to +40% damage. |
| Berserker (Kenpachi) | Light / Ground | Ignores 30% of elemental armor restrictions. |
| Sharpshooter (Shino) | Fire / Hill | Marks the highest-HP enemy for 20s; mark triggers AOE Burn and +15% damage taken. |
| Koyote (Stark) | Ice / Hybrid | After 15 soul claims, next 5 attacks chain into triple cero beams. |
| Ultiorra (Ulquiorra) | Dark / Hill | 10% chance on first range entry to stun, speed buff, or strip HP. |
| Tierabel (Halibel) | Water / Hill | Shares speed/damage with Nelle in range; every 30 kills sends a path-clearing wave. |
| Nelle (Nelliel) | Rose / Ground | +2% damage per consecutive hit on same target; buffs Ichiko in range. |
| Super Roku | Light / Hill | Instant Transmission re-places him with +30% damage for 15s; line beam stuns 3s. |
| Rohan & Robot 16 (Gohan) | Light / Hybrid | 5-hit combo chain (+5% per chain); 16 self-destructs for 200% AOE; Father-Son Wave deals 450% with +100% crit rate. |
| The Drink (Trunks) | Water / Ground | Burn on hit, +20% damage to full-HP enemies, random 10–20% extra damage per attack. |
Secret units
Secrets sit at the rarest end of the standard pool and usually drop from world raids or legend stage acts. Update 3 added Dragon Warlord, Gluttonous Warlord, and Sharpshooter King to this tier.
| Unit | Element / Role | Key ability |
|---|---|---|
| Jinoo (Sung Jin-Woo) | Dark / Ground | Spends 70% mana to summon 15 Shadow Soldiers at 75% of his damage, or 40% mana for Shadow Domain. |
| Lulu (Lelouch) | Dark / Hybrid | Stuns enemies 4s, forces collisions, and reverses movement 40% of the time in range. |
| Ichiko (Ichigo) | Dark / Ground | +1% crit chance per crit (cap 15%); crits halt regen 2s and stun 5s. |
| Dragon Guy (Ragna) | Ice / Ground | Freezes, stuns, and slows; massive scaling when Resolve activates. |
| Phantom Captain | Light / Hybrid | Summons 4 Phantom Planes that patrol the path and explode for 15% AOE damage. |
| Bio-Android | Wind / Ground | Stacks +1% damage per kill in Imperfect State; summons Robot 17 Boss after 4 waves; 5% line follow-up; ultimate stuns 5s. |
| Dragon Warlord (Kaido) | — | Hybrid DPS with crowd control and boss-killer follow-ups; benefits from macro use in Dragon Form. |
| Gluttonous Warlord (Big Mom) | — | Summon-based DPS where most damage comes from follow-up attacks and elite DoTs. |
| Sharpshooter King (Ussop) | — | Long-range Hill unit that drops traps, applies DoTs and stuns, and lands follow-up shots. |
| Ant King (Savage) | — | Radiation Hybrid DPS that stacks buffs on kill and synergizes with Jinoo. |
Exclusive units
Exclusives come from battlepasses, capsules, or limited banners and tend to fill specialized DPS roles.
| Unit | Element / Role | Key ability |
|---|---|---|
| Footballer (Isagi) | Fire / Ground | Damage scales with the strongest enemy's missing HP; failed kills buff allies +10%. |
| Jangluu (Jing Liu) | Ice / Hill | Slash deals 200% (300–500% on Frozen); applies Freeze on range entry without stun. |
| Ice Empress (Esdeath) | Ice / Ground | Full-range freeze for 3s; 30% chance to execute non-bosses under 15% HP. |
| Rogue Oni (Obito) | Fire / Ground | Multi-hit attacks trigger AOE Burn; +2% range per Burn applied. |
| Grommjaw (Grimjaw) | Water / Ground | Every 6 attacks enters Frenzy: +20% damage and −15% SPA for 10s. |
| Bambee (Bambietta) | Dark / Ground | Active hits for 200% damage; afflictions applied during the ability last 2x longer. |
| Migumen (Megumin) | Fire / Hybrid | Pure Destruction nuke at final upgrade deals 500% damage but locks and stuns her 60s. |
| String Warlord (Doffy) | — | Hill DPS that fights through clones, with Birdcage active for stuns, slows, and damage amp. |
| Quake Warlord (Whitebeard) | — | Battlepass DPS unit from Blitz Mode rewards. |
Universal and Boundless units
Universal and Boundless are the top of the rarity ladder. Universals like Joyful Captain let you commit to one of three passive paths, while Boundless evolutions stack massive multi-passive kits.
| Unit | Tier / Role | Key ability |
|---|---|---|
| Joyful Captain (Luffy) | Universal / Hybrid | Choose one of three paths: Snakeman (chain attacks, dodge, conqueror stun), Bounceman (charge stacks for damage/range/knockback, armor bonus), or Joyboy (random AOE variants, bouncy zones, knockback combo). |
| The Strongest in History (Sukuna) | Boundless / Ground | Domain Expansion grants +1,000% range and pulses 20% damage; Shadow Emerge follow-ups stack +5% damage; Ten Umbra summons Perfect and Adaptive Curses with shared immunities. |
| The Strongest of Today (Gojo) | Boundless / Ground | Limitless Sorcerer slows and amps damage 25%; Infinite Purple deals 300% map-wide; Domain Expansion locks enemies in 30s Timestop for 150% damage; immune to debuffs. |
| Jinoo, Shadow Monarch | Boundless / Hybrid | Mana-based summoning of Soldiers, Bear, Dragon, Knight, and Ant King; buffs Leveling-tag allies +20–40% damage and −10% cost. |
| Ancient Mage (Sage) | Boundless / Hybrid | Switches stat modes for burst damage, DoT, or debuff utility. |
| Crow Shinobi (Reanimated) | Mythic Evo / Hybrid | Stacks enemy debuffs, strong DoT damage, and a meteor AOE finisher. |
Synchro units
Synchro units aren't pulled directly. They're created by fusing two specific max-upgrade units on the field, and they currently put out the highest single-slot DPS in the game at the cost of using two placement slots.
| Synchro | Fusion | Notes |
|---|---|---|
| Unparalleled Armor | Nutaru (Beast) + Ancient Shinobi (Reawakened) | 3s stun/confuse on every attack and armor break; strongest Synchro overall. |
| Majestic Armor | Nutaru (Beast) + Sasku (Great War) | Heavy crit damage and on-hit DoTs with strong raw output. |
| Underworld God Synchro | Underworld God (Death) + Water God (Primordial) | Self-DPS buffs, armor damage, and debuff cleanse. |
| Jane Juliet & Mimicry Sorcerer (Clash) | Max upgrade in each other's range | Combined beam deals 500% of the two units' average damage. Not a fusion, just a triggered attack. |
To fuse a Synchro unit, both source units have to be at max upgrade. The fused result inherits the stats, traits, and relics from only one of the two — you choose which when triggering the drive.
How to summon units
Units come from the Summon area, with a rotating banner that determines which characters are available.
Step 1: Open the Areas menu on the left side of the screen and travel to the Summon area to see the current banner.
Step 2: Pick between a 1x Summon for 50 gems or a 10x Summon for 500 gems. The 10x option locks in better odds for higher rarities on most banners.
Step 3: Check banner rotations regularly. Limited Exclusives and event characters cycle out, and missing a window usually means waiting for a rerun.
Team building in UTDX comes down to mixing roles rather than chasing rarity. A solid setup pairs one farm unit (Bulmo or Fastcart), one strong Hill DPS like Spade or a Boundless evolution, a Hybrid for air/ground coverage, and at least one support or debuffer to keep waves locked down. Once Synchro fusions are unlocked, you can collapse two of those slots into a single high-DPS placement and free up room for more utility.