Charms are their own upgrade system
Governor Charms unlock at Town Center 25. Each of the six Governor Gear pieces holds three charms, for eighteen in total. They add troop Health and Lethality, so choose targets for the troop types that need those stats rather than assuming a gear upgrade also upgrades its charms.
Read sub-levels correctly
- Higher charm levels contain intermediate upgrades. Enter the exact displayed sub-level when calculating the remaining cost.
- The current reference records five steps per full level from level 6 onwards. Do not add the old full-level cost to every smaller step.
- Compare the Health and Lethality gained for the materials required at your current levels.
- Reserve both Charm Designs and Charm Guides for the target; having enough of only one does not finish the upgrade.
Use events without letting them choose your build
If a scoring day rewards charm upgrades, save an affordable planned step for that day. Stop once the useful target or reward tier is reached instead of spreading materials randomly across eighteen slots.