Max lvl troops can have their own ability, and it can be upgraded in the research.
The Ability of healing itself automatically once.
lvl one ability = healing 5% of total hitpoints
lvl two ability = healing 8% of total hitpoints
lvl three ability = healing 12% of total hitpoints
the ability of increasing speed itself automatically once start with ability level 4
lvl four ability = increase 10% speed for 4 seconds
lvl five ability = increase 20% speed for 5 seconds
lvl six ability = increase 25% speed for 6 seconds.
