Today's Addition: The Ungodly!
It's aptly named, for good reason. It has 10 Death Star lasers, enough armament to reduce any ship to ash, regardless of being shielded or not. Despite its power, it can still move pretty fast. Its antishield missiles, electrobolts and battery launchers make sure no shields survive. General purpose twin plasma turrets deal with anything that moves. Death star lasers make short work of armor.
This monster costs nearly 300 million Credits.
The Drones++ mod allows placement of "Drone Cores" which automatically power everything around them. There's a lot of them on this ship. If you think you can take its shields down, think again.
If you somehow had the ability to penetrate its armor and shields, it'd keep going until you took out its Drone Cores or the 4-5 Transmitters on it- all of which are hidden. The huge bomb core has been removed, making it stronger than the Harbinger in that area. In other words, it'd take a miracle to kill this thing without using Doomsday Devices.

Just imagine if it had ABH repair bots and armor. It'd destroy everything.
It already destroys your CPU!