By fine-tuning the way you upgrade Cthylla’s skills and gear, you can save yourself quite some valuable and limited resources in the process and as not all skills have the same amount of impact but have the same amount of costs leveling up, fine-tuning them is worth it in the end.
Important! If you want to check how well Cthylla does in the current meta of all heroes in XClash, please check out my current tier list of all heroes here.
Here is a quick overview of the rankings of Cthylla for the different modes of the game. Please refer to the full tier list linked below to see the ranking of all heroes in XClash and full evaluation and priority.
Cthylla’s Team Setups
Use our new squad planner to see how your ideal lineups look like not just with Cthylla. It also let you exclude heroes you haven’t built or mark heroes as not fully built and you can see how that changes your ideal lineup:
Cthylla’s Optimal Gear Setup(s)
Now we have to take a look at the gear setup, as it takes a lot of time and resources to craft higher rarity gear and not all gear is as impactful as the other one and you have to gear a couple of heroes in XClash. Also upgrading gear gets very expensive and you simply can’t just pump all your Alloy and Ore randomly on gear.
- +1Tap a slotEvery gear slot around Cthylla can be tapped. Empty slots pulse until you set them.
- −Lv 22+2Set what you have nowPick the item that's equipped in your game and its level. Nothing equipped? Choose "None yet".
- ▸ Upgrade next12 → 203Follow "Upgrade next"We compare your gear with the ideal order and show the one upgrade that gives the most power right now — plus the steps after it.
- ✓ Saved4Come back & updateYour gear is saved on this device. After upgrading in-game, update the slot and you get your next step.
Minimum, Sweetspot and Optimum under Cthylla show how far your gear is.

Cthylla’s Optimal Skill Upgrade Order
Upgrading skills is possible after you get Cthylla to 1-Star and then you will be able to upgrade each skill in 5-level increments. While the first skill levels are rather easy and cheap, it will start to eat quite a bit into your Skill Books and as you can’t produce them, you might end up with half-built heroes. So, here is the order you should work on the skills for Cthylla so you only spend the Skill Books where they actually provide good value.
Basicbasic
Combatpassive
Combatpassive
Supportpassive
- 1Upgrade to 1 StarRequired
- 2
CombatLv 1 to Lv 5Start hereRequiredYour passive Combat goes from Lv 1 to Lv 5 now. Hold off on every other skill.Lv 5 is enough for now. The next levels come after the upgrade to 2 Stars. - 3
CombatLv 1 to Lv 5RequiredPush your passive Combat to Lv 5 first. No other skill upgrades before that.Pause at Lv 5. You'll come back to this skill after the upgrade to 2 Stars. - 4
BasicLv 1 to Lv 5RequiredAll books go into Basic here: Lv 1 to Lv 5. The other skills stay where they are.Stop at Lv 5 for now; the rest comes after the upgrade to 2 Stars. - 5Upgrade to 2 StarsRequiredUntil this upgrade, keep Basic, Combat and Combat at Lv 5.
- 6
CombatLv 5 to Lv 10RequiredFocus on your passive Combat: Lv 5 to Lv 10. The other skills can wait.Lv 10 is enough for now. The next levels come after the upgrade to 3 Stars. - 7
CombatLv 5 to Lv 10RequiredBring your passive Combat up from Lv 5 to Lv 10, and keep the rest of the skills as they are.Lv 10 is enough for now. The next levels come after the upgrade to 3 Stars. - 8
BasicLv 5 to Lv 10RequiredLevel Basic from Lv 5 to Lv 10. Leave the other skills alone until it's done.Pause at Lv 10. You'll come back to this skill after the upgrade to 4 Stars.
Low investment and nice improvement accross the board here that absolutely is worth it before starting to get more seelctive on what skills you actually upgrade next.
- CORE
- GOAL
- MAX
Unlock all 2 sections Hide plans
Conclusion
I hope this guide helped you to build your Cthylla without just pumping your books into the skills. I assure you this will make your progress in XClash a lot faster and get the biggest bang for your buck in terms of making the skills rock that really make a big impact espcially as costs get higher and higher.