All Star Tower Defense X tier list

Creating the ultimate team in All Star Tower Defense X requires knowledge of the best units. Each update brings more anime-inspired characters and their evolutions in the tower defense game, requiring you to adapt to the changing meta. This adaptability is crucial for both progressing in the Story as well as for completing tougher levels such as Trials and Dungeons.

This tier list ranks all the ASTDX units, so that you can prioritize obtaining and using the best during your gameplay.

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Ranking all units in All Star Tower Defense X

All units in All Star Tower Defense X have been categorized into four tiers according to their utility and powers.

S tier

Spider Boss in ASTDX (Image via Roblox)

The S tier includes all the most effective units in All Star Tower Defense X. They can defeat the strongest waves with ease, provided that they are leveled up, upgraded, and assigned the best Traits. As expected, they are exceptionally rare, possessing low drop rates in Summon Banners and Trials.

Unit	Rarity	Availability
Devil	Unbound	Summon Banners
Supreme Leader	Unbound	Trial Shop and Trial 3
Spider Boss	Unbound	X Banner
Michishibo	Unbound	Y Banner
Magma Marine	Unbound	Trial Shop and Trial 2
Etri	Unbound	Trial Shop and Trial 1
Underwater God	5-star	Mafia Shop
Star Boy	5-star	Summon Banners
Brano Cuciarati	5-star	Summon Banners
Fighter Eagle	5-star	Summon Banners
Freezer (Final Form)	5-star	Evolve Freezer
Masochist Lady	5-star	Dungeon bags
Future T	5-star	Summon Banners
Super Borul	5-star	Evolve Borul
Dark Wing	5-star	Summon Banners
Killer (Serious)	5-star	Evolve Killer
Ziek (Beast Giant)	5-star	Summon Banners
Venus	5-star	X Banner
Expert Sorcerer (Serious)	5-star	Evolve Expert Sorcerer
Dark	5-star	Summon Banners
Spade	5-star	Summon Banners
BOX	5-star	Summer Event

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A tier

Zorro in ASTDX (Image via Roblox)

This tier features all the units that are slightly less effective than those in the S tier. Nonetheless, they are reliable units that can help you clear Trials and Expert difficulty stages if you deploy and upgrade them strategically.

Unit	Rarity	Availability
Nerotto Riso	5-star	Summon Banners
Lil Bomber	5-star	Summon Banners
Jokato Koju	5-star	Summon Banners
Six Seven	5-star	Summon Banners
Kuroma (Yoko)	5-star	Evolve Kuroma
Fire Officer	5-star	Summon Banners
Tomi	5-star	Complete Tower Floor 30
Tony Stark	5-star	Summon Banners
Freezer	5-star	Trial 3 Arc 3
Zesty General	5-star	Summon Banners
Blood Commander	5-star	Infinite Leaderboard rewards
Sky God	5-star	Summer Event
Killer	5-star	Summon Banners
Alligator	5-star	Summer Shop and Summer Raid
Blackstache	5-star	Summon Banners
King Kaoe	5-star	Summon Banners
Onwin	5-star	Summon Banners
Super God Koku	5-star	Evolve Super Koku
Sorcerer Killer	5-star	Summon Banners
Zorro	5-star	Summon Banners
The Strongest One	5-star	Summon Banners
Whitestache	5-star	Summon Banners
Jin Sung	5-star	Summon Banners
Airren	5-star	Summon Banners
Silent-Swordsman	5-star	Fireworks (Limited-unit)
Ikki (Hollow)	5-star	Evolve Ikki (HalfMask)
Kujo	5-star	Infinite Mode - Void Bags
Xerxes	5-star	Ranked Shop
Cursed Talker	5-star	Summon Banners
Slayer Mage	5-star	Y Banner
Shark Ninja	5-star	Fireworks
Mysterious X	5-star	Summon Banners
Shirtless Magician	5-star	Summon Banners
Red Servant	5-star	Evolve Dual Servant
Spirit Detective (Orb)	4-star	Evolve Spirit Detective
Expert Sorcerer	4-star	Summon Banners
Xero	5-star	Summon Banners
Kuroma	4-star	Summon Banners
Ikki (HalfMask)	4-star	Summon Banners

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B tier

Explosion Artist in ASTDX (Image via Roblox)

The B tier consists of those units that are selectively effective. They offer powerful team-up abilities, decent AoE skills, or decent support to DPS units. However, there are better alternatives available in the game.

Unit	Rarity	Availability
Super God Vegu	5-star	Evolve Vegu (Mind)
Spiral Pilot	5-star	Summon Banners
Explosion Artist	5-star	Summon Banners
Water Goddess	5-star	Dungeon Loot Bag
Nighty	5-star	Premium Capsule
Yuni	5-star	Summon Banners
Zaruto (Beast Cloak)	5-star	Evolve Zaruto (Sage)
Ruwabara	4-star	Summon Banners
Handsome Jo	4-star	Summer Box 1
Savon Master	4-star	Winner's Box (awarded to winners of the Pirates vs Marines team event)
Humble Swordsman (Selection)	4-star	Summon Banners
Anti Magician (Demon)	4-star	Evolve Anti Magician
Nezichi	4-star	Summon Banners
Mbappe (Copycat)	4-star	Summon Banners
Neymar (Trapper)	4-star	Summon Banners
Vegu (Mind)	4-star	Evolve Vegu
Super Koku	4-star	Summon Banners
Ramen Grill-Master	4-star	Summon Banners
Koro (Lobby)	4-star	Evolve Koro
Koku	3-star	Summon Banners
Ice Queen	3-star	Summon Banners
Kogan (Kid)	3-star	Summon Banners
Janji	3-star	Summon Banners

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C tier

Spirit Detective in ASTDX (Image via Roblox)

Units in this tier are an afterthought. Yet, you must be familiar with their abilities, since they could be given to you during the "Random Units" Challenge. Moreover, they have a low spawn cost, which makes them beneficial for clearing the first few waves in any stage.

Unit	Rarity	Availability
Zaruto (Sage)	4-star	Summon Banners
Gen	4-star	Summon Banners
Dual Servant	4-star	Summon Banners
Kosuke (TS)	4-star	Evolve Kosuke
Stampede	4-star	Summon Banners
Ruffy (Lobby)	4-star	Evolve Ruffy
Vegu	3-star	Summon Banners
Ruffy	3-star	Summon Banners
Koro	3-star	Summon Banners
Borul	3-star	Summon Banners
Zio Brundo	3-star	Summon Banners
Jon Jo	3-star	Summon Banners
Captain	3-star	Summon Banners
Kosuke	3-star	Summon Banners
Ikki (Early)	3-star	Summon Banners
Spirit Detective	3-star	Summon Banners
Uru	3-star	Summon Banners
Lami	3-star	Summon Banners
Humble Swordsman	3-star	Summon Banners

After getting the most powerful units, use Stat Dices and Trait Burners to give them the best stats and perks. Moreover, ascend or evolve them (if any) to improve their overall potential.

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Also check: All Star Tower Defense X: A beginner's guide

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FAQs on All Star Tower Defense X

How do I get more units?

You can get more units by using Gems in the Summon Banners and by completing Trials and Dungeons.

What are Unbound units?

Unbound is the highest rarity in the game. Units belonging to this category are incredibly powerful, possessing attacks that inflict notable debuffs on enemies.

How can I ascend or evolve units?

You can ascend or evolve units by getting specific materials and currency. To check them, click the unit in the Loadout menu, and then select "Ascend" or "Evolve" below their image.