Combat units in the underworld can be upgraded in two ways so they can take on higher-level heroes.
- By upgrading the units in the upper area of the underworld. Click the "+" button to upgrade their levels and attributes.
The maximum level of units is 600. They have the warrior class and differ in their luck attribute.
|Goblin||First line of defense||0.192|
|Troll||Second line of defense||0.215|
|Keeper||Last line of defense||0.43|