I've just updated a number of spells and abilities to respect stun immune creatures that weren't previously. The following have all been updated:

Mental Blast
Shear
Dazzle
Arc Light
Halo (This actually didn't need new messaging)
Phelim's Sanction
Branch Break
Stun Foe
Kuniyo's Strike

Any others that use the same core mechanics (most notably Thief abilities) should now respect stun immunity as well but may not message correctly at the moment.

-Raesh

"Ever notice that B.A.'s flavor text swells in direct proportion to how much one of our characters is getting screwed?" - Brian Van Hoose