"Newcomer-2012. Summer"

So, in this case, did the sphere work as a negative artifact for Rosen, granting immunity to the opponent's spell but removing it from his own creatures?
P.S. I just haven't encountered such a situation.

Yes, there are many interesting exceptions in the physics engine regarding the sphere... As for the turn order priority, I haven't found any information about it in the physics engine, maybe someone can point me in the right direction.
P.S. Sorry for the off-topic.