btw it'd be nice to use ironskin+bombardment every coe physical proc if not riding the horse i think
It does do this, it casts w/ 2 seconds left on the ice proc, reason is, it takes 2 seconds ish for bombardments to start hitting and they only get the physical damage bonus while it's active, you get the most out of it if you cast it about 1-2 seconds before it's actually on physical (physical proc applies to each barrel individually, not snapshotted at the time of cast).