I find it quite annoying how when I expend all of my troops and some of them survive, they are lost. What I think should happen is depending on how injured the troops are, the longer it takes for them to heal.
Example:
If a troop survives with Half health, it takes 5 minutes to fully regenerate that troops health. SImilar to the King and Queen.
This is to help save Elixir/Dark Elixir and to keep troops.

