1: Dark wall breaker
Cost: 45 Dark elixir
Training time: 5 mins
Housing space: 4
Damage p/ sec.: 40
Hit points: 50
Movement speed: 24
(Does x40 damage to walls)
Description: Smarter and more highly trained than your average wall breaker, these wall breakers will follow a line you draw before it's placed, although the line can only be so long.
(It doesn't auto target anything because it follows the line until it ends, at which spot, it explodes.)
Image: There's no image here because it looks exactly the same as a regular wall breaker, except that it's skeleton is more grayish, and the cap is a dark purple. (To be honest, I don't care about the colors; it's just simply going to be darker than an average wall breaker.)
2: Dark barbarian
Cost: 8 dark elixir
Training time: 40 secs.
Housing space: 1
Damage p/ sec.: 20
Hit points: 100
Movement speed: 18
Favorite target: town hall (damage x3)
Description: Pretty much just a stronger barbarian, except that it immediately targets the town hall, which could be very useful in various ways.
Image: once again, it's looks just about the same, except that it has a darker recoloring. Like, he has black instead of blonde hair, and a navy blue belt and wristbands. Also, this next part is optional, but he could even have a cooler looking sword.
Dark WB is silly since you can just tunnel him to the wall you want to break, so there's no point in "drawing a line" and making a dark troop for this.
I find DB pointless as well: unless you find a farming base, there's no point in a barbarian running straightforward to a wall(which happen to cover EVERYTHING around a TH) to get cannon'd.
And if it's a farming base, regular barbarians will do the trick just fine.