If you want to just beam beam beam, use Oakensoul! Less time watching DoT timers, more time beaming. And you can still do well over 70k DPS.

Pair with Deadly Strike to turn your book beam into a library laser, and then your "flavor" set of choice. The above sets work great for high DPS (I use Pillar of Nirn personally for a 75k DPS build because I don't have the trial sets), but you could probably find a more fun set if you like.

Make sure to use the Velothi amulet, whichever other sets you pick could vary based on what’s available, deadly strikes is easy enough to obtain at first, azureblight demolishes crowds very well when paired with the beam

My typical rotation would be inspired scholarship, optional skill(s), flail, flail, light attack + pragmatic fatecarver, optional skill(s), flail, flail, light attack + pragmatic fatecarver

The optional skills can be magic based to help balance out the resource regeneration, like elemental blockade

Since Velothi cancels light attack damage, as long as you land one light attack before each beam you get consistent ultimate generation and still keep up the maximum damage. Actions per minute will be incredibly low compared to anything else you can do in this game