I'm interested in which Fortitute/Reflex/Will save numbers you'd feel comfortable with when running EH or EE content with an Arcane Caster who has only a limited array of CC and Instakills (as the spell pen is currently lacking).
To give it some perspective: The toon I'm asking this question for is a 18 Wiz/2 Rog Warforged Evocation/Conjuration AM who's using Web as primary option for CC.