Crafting Sanctum Threat (book 2)... I love it.

Writing is an enjoyable activity... and plenty of work all at the same time.

As interesting and dynamic as an action scene is, for instance, it still must conform to certain other criteria... such as realism, being in-sinc with the character's abilities, and something that communicates intentions all by itself... as combat is a form of communicative interaction between enemies. 

And between experienced combatants the "conversation" can become quite complex.  Writing that sort of thing is more difficult than it sounds.  But a fun challenge.