1. shadowmind *is* implemented in PRC
2. daggerspell mage - there is something similar - Arcane Trickster, as for divine casters - Black Flame Zealot should do
3. AFAIK spell sneak attack works fine B) (i got over 100 dmg from casting Ray of Frost!) , but I didn't play any class with it recently - is it broken?
But I would like to see Daggerspell Mage in PRC to, since it's more melee class than Arcane Trickster.