Your swarm sound is as though a festering flesh-eating wound could express excitement to the ones it is eating. Visceral, and terrifying. I don't even want to listen to it twice.
I like the drums especially in the territory conquest sound, but all the layers work well together to convey the meaning.
The ability acquired sound the first part is a little grating to my ears, and goes on for a tad too long before the drop off.