Obviously there are already dragons in the game, however a dark dragon would compliment the dark barracks quite nicely I think. Consider this:
The "light" barracks dragons in the game were once raised and cared for by wizards, and in return the dragons offered the wizards orders towers protection. However, in the wizards' inexhaustable desire to further their arcane knowledge, they took a few of the fledgling dragons to their tower for experimentation for their reaction to dark elixir. Unexpecedly, the introduction of dark elixir with pure dragon blood drove the dragons to the point of insanity. The wizards realized their mistake and removed the fire producing glands from the dragons in an effort to better safely control the dragons until a possible cure could be developed. The dark elixir in their blood, however, regrew the glands into something more sinister. Mixing dragon fire with dark elixir, these new glands produced a lava type elixir that does critical damage to rock and crystalline surfaces. The wizards quickly realized that they had inadvertently created the ultimate wizard killing machine. The dragons broke free of their bonds and they will now suffer any damage necessary to destroy the wizards that they once protected.
They go after wizard towers only until all are destroyed, then whatever structures remain are targeted.
Basically same speed as the light barracks dragon.
Cost per unit: 500/625/750/850
HP: 2750/2875/3000/3150
Housing space should be 20 I think.... 25 max
Dps should be slightly higher on wizard tower since that's their primary target. No splash damage until wizard towers are destroyed. If that AI would be risky of lag, then no splash whatsoever, maxst raise DPs on all targets not wizard towers to compensate



