Anger of Perseus is the capital ship you can build in this game. If you are early at building a shipyard to level 16, this capital ship may be expensive for you. Therefore you should require a decent amount of steel production, antimatter production and high production of other resources.
Special Effect Edit
The Anger of Perseus will enter a 'berserk mode' when the player's OR the enemy fleet's HP drop below 15%. In this mode, your fleet will get +50% piercing power and will do 50% more damage for each Anger of Perseus.