The Nebula type ship of the game Star Trek Armada is the Federation's caster, built by the Advanced Shipyard. As such it is slowly moving, has little fire power and low shield energy. It makes up for these shortcomings with its four special weapons. The Shield Disruptor is particularly dangerous, as it effectively reduces opponents ships health to almost zero for a short time. The Point Defence Laser and Federation Repair Team are more of a supportive function. The latter can be very valuable for restoring defenses after repelling an attack. Gemini Effect may allow for rouse-like tactics of information gathering. When you see this ship being deployed, don't underestimate it one bit! It may be expensive but it is worth its money.