Brief supplementary comments.
Uria's BG is a very good support. She can buff her team well (including with the prized Precision) - but most importantly, she neutralizes Kihaku and many other deniers with her ability to give her team immunity to freeze and possession (all forms). With the advent of Warmasters she can be coupled with Gortak (who gives his team immunity to stun and Megastun as a passive trait), making your team immune to almost all forms of control (neutralizing Xiron). A valuable tool in the toolbox for unlocking denial defences.
Alces BG, a Tank, is interesting. I have not yet made my mind up about him. Very high life, and a 0 cost (4 CD) skill that doubles his life and gives increased healing. A few taunt moves, and some nice hit+support moves (which I like) including a 1 CD 60pt Nature single that clears team debuffs. That points to anti Xiron possibilities... but he is only Hardened, and he is slow, so unless paired with Gortak up front, I have difficult seeing how to leverage those possibilities. And although he has several moves that increase healing, that can be a double edged sword, and he has no healing himself.