This trap would require buying a pair of electric stakes that are attached to each other by a wire.
How: Setup will require you to tap on a piece of wall and thus highlighting the potential other ends of the trap in each available contiguous direction along the wall. After selecting where you want the trap, the wall will glow a fluorescent yellow that only you will be able to see (like all other traps).
Detail: This trap is invisible to attackers until a hog, hound, loon, archer, etc. tries to shoot, jump, fly over the wall.
Once the troop gets within 2 spaces, the trap activates for 5 seconds (lvl 1 trap) and the troops go to the nearest 'available' wall. For troops that attack defenses, they'll attack the closest 'available' defense next to the trap.
After the trap is activated, it is lost for the rest of the attack, so place carefully!
The length of the trap will be only 6 wall spaces long in order to help briefly defend the width of two average defenses.
Upgrades/reload: the upgrades coincide with the freeze spell duration: lvl 1 -5 sec, lvl 2 -5.75 sec, etc. the length of the trap doesn't change.
This may be a dark elixer trap with 75 reload.
Wallbreakers/jump spell: wall breakers will run to the most vulnerable portion of the wall NEXT to the trap. Be leary if you deploy all wall breakers at once.
The jump spell lasts signifiantly longer than the trap depending on level. For the duration of the trap, the jump spell is blocked.
Note: your defenses will be able to shoot the attackers through the trap, giving them a brief advantage.
What do you all think?

