I have a few questions about aspects of the Magister destiny which are not made clear from the Wiki/Game description. Hopefully someone more experience than me can answer:
1. Does the "stacking" energy resistance provided by Sigil of Energy Negation and Variable Resistance mean it stacks with ordinary sources of energy resistance such as items or the Archmage Abjuration SLA?
2. Spell School Augmentation states "Chosen school spells have [5/10/15]% chance to reduce target <save depending on school> by 10". Is this applied before or after the save roll for the spell which actually triggers the effect? My guess is after, in that it won't make the triggering spell any more powerful but will reduce save DCs for subsequent spells from the same school.
3. Nullmagic Strike states "Offensive spells you cast, melee and ranged attacks have a [5/10/15]% chance to subject the target to a Dispel Magic effect". Does this mean the roll is made per-cast, or per damage effect? Does a spell which does damage in several increments like Force Missiles have a higher chance to trigger the effect?
4. Grand Summoner: "Summons gain +4 to all ability scores". Does this mean all summons, including summoned monsters, PM skeletons etc, or just the epic monsters summoned with its Call Kindred Being pre-requisite?