I think we should have our builders fight.
These builders only go for builders huts, when all the builders huts or gone then they go over an obstacles. And they can get you free gems from the obstacle
They takes 10min to make
Cost 100 dark elixir at level 1 then add 20 dark elixir every time its upgraded. It is unlocked at dark barrack level 7 or 8 and can be upgraded 3 times to level 4. The hitpoints are low like maybe 30. Add 5 every time its upgraded. If they are no obstacles left Then they disintegrate into dust. It's movement speed is 12 and it targets ground units.





