The scarab is so glad she asked!
It can fly, but she knew that already. It can make plasma cannons and sonic cannons. Bigger cannons than that one, for bigger booms, are possible but take more energy and therefore can't be used as often. Also, the same nanotechnology that makes the suit and the cannons can also make other things, including detachable objects. These can be shot as projectiles if the situation calls for it. This, again, isn't an unlimited ability, so if she wants to build a pyramid out of suit material it might take a few decades.
It can also create holograms and perform a variety of scans including the standard infrared, ultraviolet, electrical and radio waves. It can scan the life-signs of living creatures and analyse people's voice patterns to detect lies with 82.6% accuracy. Oh, and it can translate languages, including ones not spoken by anyone on Earth.