The Dark Mist Trap!!

A new way to disturb the attacking chief to see from above. The enemy's troops will be covered in darkness from the dark mist which produced by the dark elixir. The enemy chief won't know what their troops are doing or going to under that thick mist.

The opacity of the mist will be reduced in the replay session, so the defending/attacking chief could knew what's really going on in there.

Size : 2x2
Buying cost: 5000 dark elixir
Trigger : enemy troops stepping on it
Mist diamater: 9(lv1), 10(lv2),11.5(lv3) tiles
Re-arm cost: Lv1(100), lv2(200),lv3(450) dark elixir
Unlocked at: th 8
upgrades: lv 1-> lv2 in th9 (10000 dark elixir), lv2->lv3 in th 10 (15000 dark elixir)
Maximum number of traps: 1 at th8, 2 at th 9&10

Sorry for the bad english, Thanks!!