The Warbird is a dedicated air superiority fighter.
The Warbird can deal massive damage to enemy gunships; only a Dragon could survive its attack (and with minimal health remaining). It also has great speed, being able to outrun almost all units that could hit it.
The Warbird's main weakness is that it can hit air units, and only air units, making it helpless should an anti-gunship unit get within range. Should that happen, its low health makes it easily destroyed.
The Warbird's attack has a special property.
Instead of firing directly at its target, the Warbird's missile aims ahead, ensuring that it will hit a moving target. No amount of raw speed will allow a unit to dodge the Warbird's splash, however, by flying directly away from the warbird in the way that the missiles are going, it is possible to outrun them, even with another warbird. This can be used to destroy warbirds with your own warbirds without being damaged, assuming you can react quickly enough.
|Level||Water||Iron||Time||Research Center Level|
|1||1,200,000||1,080,000||22h 13m 20s||5|
|2||984,000||885,600||11h 6m 40s|
|3||1,446,480||1,337,256||13h 6m 40s|
|4||2,126,326||2,019,257||15h 28m 16s|
|5||3,125,699||3,049,077||18h 15m 21s||6|
|7||6,754,322||6,952,201||1d 1h 25m|
|8||9,928,854||10,497,824||4d 5h 59m|