Looking to strengthen your units in All Star Tower Defense X (ASTD X)? Ghost III (Rainbow) and EXP IV are two of the most valuable resources you can get your hands on. These items are essential for evolving and upgrading characters to their highest potential. But getting them isn’t always easy—especially if you don’t know where to look. In this guide, we’ll break down exactly how to get Ghost III and EXP IV, the best game modes to farm them, and some important tips to make the grind easier.
What Is Ghost III (Rainbow) and EXP IV?
- Ghost III (Rainbow): A high-tier enhancement item used to evolve or upgrade powerful units. It’s rare and highly sought-after for late-game progression.
- EXP IV: A premium EXP material used to quickly level up your units. It’s crafted by combining lower-level EXP items.
How to Get Ghost III (Rainbow) in ASTD X
You can earn Ghost III primarily through the Challenge Modes, with the best chances coming from:
1. Daily Challenge – Expert Mode
- This is where you’ll find the highest chance, sometimes guaranteed, to get Ghost III.
- Keep checking the daily rotation. When Expert Mode for Daily Challenges features Ghost III, make it your priority.
- The difficulty is high, so you’ll need a solid team and strategy.
2. Future City – Expert Challenge Mode
- Offers around 30% drop chance for Ghost III.
- Not as reliable as the Daily Challenge, but still worth grinding when it’s available.
3. Other Challenges (Hard or Expert)
- Some challenges give Ghost II, and a few have a small chance of dropping Ghost III.
- These are less efficient but can still be part of your grind if you miss the daily opportunity.
How to Get EXP IV in ASTD X
There are two ways to obtain EXP IV, and both require working your way up through lower EXP items:
1. Infinity Mode
- Head to Infinity Mode via teleport.
- In this mode, you can get EXP I, II, and III as drops depending on your progress.
- It’s not a direct drop for EXP IV, but it helps you gather the materials needed to craft it.
2. Crafting EXP IV
- To get EXP IV, you must combine three EXP III units.
- This evolution method is accessible via the crafting or evolve feature in the game menu.
- Keep farming Infinity Mode until you have enough EXP III to create EXP IV.
Always prioritize Daily Challenge Expert Mode if Ghost III is featured—this gives the best return. For EXP IV, grind Infinity Mode consistently and stock up on EXP I–III for future combinations. Form a balanced team that can handle high-difficulty content to make farming less painful. Don’t forget to check back often—challenge content rotates, and availability changes daily.
Ghost III and EXP IV are essential for pushing your units to their highest potential in ASTD X. While the grind may be tough, the rewards are absolutely worth it. Make sure to focus your energy on the right modes and stay consistent with your farming. With a bit of effort, you’ll be upgrading your team like a pro. Good luck out there, and may your gacha pulls and upgrades be ever in your favor.