My suggestion is a new Dark Spell: ZAP.
As in Clash Royale (it seems that CoC likes taking characters from Clash Royale and viceversa), ZAP spell is like a small lighting spell, with reduce radius and very small damage, quick response, but with the ability of killing weak troops (i.e. skeletons), and more important, to stun for 0.5 seconds and "reset" defenses and enemy troops. This "reset" means that, for example, a single inferno which is increasing its damage, will freeze just 0.5 seconds and start the damage from begining. It also means that a defense (i.e. X-bow) that has been shooting one troop like the warden, after the reset will start shooting at the closest troop, which may be different now (maybe the King got closer to the X-bow radius).
VALUES (Of course, they may be adjusted):
Cost: 25k (Lv2) / 50k (Lv3) / 75K (Lv4)
Damage: 50 (Lv 1) / 60 (LV2) / 70 (LV3) / 80 (Lv 4)
Brewing time: 3 minutes
Radius: 2 tiles
Stunt duration: 0.5 seconds
Target: Air & Ground
What do you think? If this idea has already been proposed, sorry.

