Enhancing your units in All Star Tower Defense X goes beyond simple leveling up. One effective way to boost their power is by unlocking their Hidden Potential. This guide will help you navigate the Hidden Potential skill trees, ensuring you know how to maximize your units’ potential.
Understanding the Hidden Potential Skill Tree
Once you reach player level 18, you’ll unlock the opportunity to use the Hidden Potential skill trees for your 5-star and higher units in All Star Tower Defense X. Remember, you can only unlock one skill tree per unit. On unlocking a Hidden Potential tree, you’ll have access to nodes that can enhance your unit’s stats and four special skill nodes that provide powerful passive abilities.
Unlocking Special Skills and Other Nodes
To unlock all special skill slots on a specific Hidden Potential tree, you’ll need three duplicates of the same unit. 
You can allocate the same skill multiple times if desired. 
Fast Unlock allows you to quickly unlock nodes using existing Skill Orbs.
To allocate a node in your unlocked Hidden Potential skill tree, you’ll need Skill Orbs matching your unit’s element color. For example, if Jin Sung is a purple unit, you’ll need a Skill Orb (Purple) to unlock nodes on its tree. There are two types of orbs: Skill Orb I and Skill Orb II, and you’ll require a fair amount of both to maximize your unit’s potential.
When unlocking nodes for special skills, you’ll need to chart your path carefully. While the first special skill slot is relatively easy to unlock, the remaining three slots will require three duplicates of the same unit. You can also invest multiple allocations into the same special skill to enhance its effects.
ASTDX Hidden Potential Special Skill Tier List
This tier list categorizes every Hidden Potential special skill in All Star Tower Defense X based on their overall DPS and utility. While all skill trees are relatively balanced, the Damage path often proves to be the best option for most DPS units. It’s highly recommended to have at least one unit with the Marker special skill, which can boost your entire team’s DPS by 30%.
Damage, Range, and Speed Skill Trees Overview
Each Hidden Potential skill tree offers enhancements in Damage, Range, and Speed, each contributing small buffs to your unit:
- Damage path: +15% Damage, +5% Range, -5% Speed
- Range path: +5% Damage, +12.5% Range, -5% Speed
- Speed path: +5% Damage, +5% Range, -10% Speed
With the bonuses being fairly similar, the special skills unique to each tree should ultimately drive your decision on which Hidden Potential skill tree to pursue.
How to Acquire Skill Orbs
You can earn Skill Orbs from Challenge stages that rotate every 30 minutes. 
Transform Pure Skill Orbs into any color you need.
The main avenue for obtaining Skill Orbs is by completing rotating Challenges every 30 minutes, where you can earn orbs of different colors on Hard and Expert difficulties. Additionally, three other challenges will reward you with evolution materials and Skill Orbs (Pure).
That wraps up our exploration of Hidden Potential skill trees in All Star Tower Defense X. We’d love to hear your thoughts—what’s your favorite special skill? And don’t forget to check out our other content, including exclusive Moyens I/O codes for more in-game rewards!
Can I progress through multiple Hidden Potential skill trees at the same time?
No, once you assign Skill Orbs in one skill tree, the others become locked for that unit.
What is the best Hidden Potential skill tree for DPS units in ASTDX?
For the majority of DPS units, the Damage path is optimal, as it grants access to Critical and Marker skills that significantly enhance DPS.
Can lower rarity units unlock Hidden Potential?
No, only 5-star and rarer units can unlock Hidden Potential in ASTDX.