Thank you for the clarification; last I tried to use the wikidot the search function said it was "coming soon", so I perhaps preemptively assumed it was very vestigial.
With regards to assuming 'Break' might have a special condition to do damage, it was mainly that it seems an exceptionally powerful spell, rather than any particular quirk of phrasing. On the matter of armour expertise 2 'forcing' exploding dice, I did mistype, armour expertise 3 is required - the specific scenario in which this occurs is when a d8 damage dice, for a spell cast by a caster of 15th level or higher, is stepped down by both armour expertise 2 and 3, resulting in a d4 roll that explodes on a roll of 1+, unless I have missed something?
