Elder Scrolls Online

I started and finished the main Hermaeus Mora questline (and Psijic - I just love the talking skull) with a Breton Majicka build. Thus far my favorite skill (other than "Book Laser!") is the tentacle arm, but it seems the better morph is the Stamina version. Do I change my whole build around for that, or do I continue the Majicka path? One benefit of the current path is it pretty easily pivots into a Healer, which the world seems to need more of.