** AOE (Area of effect): Deals damage to units within 1 range distance of the target unit.
*** Mage will heal an ally with lowest health in each turn
Units earn experience (XP) in battles. When they get enough XP, they will upgrade to the next Level. by upgrading to new levels, units' HP, Attack Damage, and Healing will increase by 50%. For ranged units, they will get 1 more attack range every 3 levels. For example, the table below shows the stats of Archer at each Level.
Each troop earns 10 XP if they win the battle, but if they lose the battle, troops will earn 5 XP. Required XP for level up to level 2 is 100 and for next levels is previous level required XP + 50%. For example: Troop level 1 requires 100 XP to level up, and troop level 2 needs 150 XP to reach to the next level.
You can combine 2 units with the same level to get 1 stronger unit with one level higher. The XP of the new unit is equivalent to the average of previous units.
Example: if you combine two warriors with Level 3 and the first one has 100 XP and the second one has 150 XP, then you will get a new warrior with level 4 and 125 XP