I thought of posting this update last night, so here it goes though. New feature Dungeon just in the outskirt of your cities for you to find materials needed to equip and upgrade your Heroes, my dashing Jarvis :p
When you enter, you can choose the Mysterious caves or Trial grounds.
Trial grounds are for level 21 and above heroes, which I have not yet achieved thus cannot show you today.
So I could only embark on Mysterious caves expedition. The caves are available in various levels.
Each level offers different materials that could be found. The expeditions cost stamina. When they ran out, it could be refilled fullybdue time (1 stamina takes 5 minutes to refill) or instant refill by paying 5 game gems.
Just click Attack when you are done selecting your troops.
Example of troop sent to fight level 7 cave.
Sorry, chose the wrong battle report of the other party, but nevertheless, these are the basic units in the cave- the Dragon soldiers. Example of items that I got from there and can be used to upgrade Jarvis.
It is just like attacking the Royal chambers, but with only 30 seconds marching time and no food consumption.