New troop idea: hydra

The hydra (air troop):
Training cost: 250 DE
Training time: 45 minutes
Housing space: 30
Damage per second: 200-300
Hit points: 2000
Movement speed: 24-16
Description: The hydra will grow more heads a its health lowers, therefore increasing its damage, but decreasing its speed. At 2/3 health the hydra will grow a second head, increasing its damage 25% to 250, and lowering its speed to 18, and when it is at 1/3 health it will grow a third head, increasing its damage 20% (from 250) to 300, and lowering its speed to 16.
Reference art: From Google image search:
http://img3.wikia.nocookie.net/__cb2...ategory%29.jpg

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