Hero's Outpost!

[MarcifieD Strategy]:
Hero's Outpost is recently built in the recent patch to enhance the gameplay for most players. It is located behind (above) the Treasure Cave, it mainly provides items, skills and recycling unused junk to aid players who lack items to clear certain stages in the game, be it Campaign or Dojo. Let's take a look at the structures in the Hero's Outpost:

(From left to right):

Furnace: Uses power to recycle your items back to wood, iron and crystal. Power regenerate over time. It is wise to recycle your unused items, especially Blue items, which can be obtained easily, while producing crystals after extraction. Every level enables you to Recycle more types of items, and also uses lesser energy!

Battle Institute: Learn extra skills using the 3 resources. Every level enable you to learn the skills faster, and learn more tomes!

Scholar: After you learnt a skill from the Battle Institute, you will gain Scholar exp, which can be used along with the 3 resources to further improve your heroes' stats. Every 10 levels enable you to increase your maximum skill point limit!

Workshop: Craft items using the 3 resources. Every Level shorten the crafting time and enables more item crafting!

What to do: Level up all the structures to the max as soon as possible! This will give you an advantage of doing everything faster in the long run. Do note that when upgrading the structures, you cannot use them, so make sure you spend every energy in the Furnace before upgrading it, likewise for other structures!