New Dark Troop: The "Destroyer"

Requires a lvl.9 Dark Barracks

Lv.1
Destroyer
DPS-125 (x5 vs walls)
HP-1200
Training $- 280 Dark
Fav. Target- Walls, then defenses
Dam. Type- Area Splash
Targets- Ground
Housing- 20
Train Speed- 25 min
Mov-12

Lv.2
DPS-140 (x5 vs walls)
HP-1300
Training $-315

Lv.3
DPS- 155 (x5 vs walls)
HP- 1400
Training $-350

Description: The Destroyer is a giant sized wall breaker infused with dark elixir, equipped with a cannon arm it can load up with bombs from it's back; allowing it to wreak untold havoc upon an enemy's base!

Appearance: a wall breaker as tall as a giant that has a barrel full of bombs strapped to it's back, and it's right arm converted into a cannon from the elbow onward.

***The ultimate wall breaker that blows open your enemy's base like a siege weapon, and could also make for a strong defense unit in a clan castle (though it can't attack air)

Overpowered? Overpriced? All feedback is appreciated. Comment and share your opinions and ideas :)

Sounds like a pretty good idea but:

1. Why Dark Barracks 9? We don't have a 7 or 8.
2. What would its range be?

I say Dark Barracks lvl 9 because this idea was in addition to 2 other dark troop ideas I had, the Bandit and shadow monk, which would use up the lvl 7 and lvl 8 slots.

Range-wise for this unit though I would imagine it having the same range as an archer