When the game of top war battle game upgrades soldiers.
The following prompt often appears.
Synthesis needs to be studied successfully.
This synthetic resource needs to meet the gold coins and mercenary materials,
Mercenary materials need to be in the world gameplay in the lower right corner of the main interface.
Click search after entering.
Enemies will appear after clicking, click separately to see the materials dropped after the challenge.
After all the materials are collected, we can synthesize mercenaries of this level at will.
While expanding the map, you need to constantly upgrade your mercenary level.
This requires everyone to rationally arrange their physical strength to fight.