I think a lot of the old exilus mods should get updated because currently there are many that are nearly completely useless and I think a good mod to start with is "Retribution." (+60% chance to deal electrical damage when shield is struck by MELEE enemies, +80 Electricity) This mod procs archon stretch so it can be a good facilitator if not using Diriga but the melee enemy restriction instantly ruins it. It also wouldn't be too strong of a mod in the first place even with the change because your losing the spot for prime sure footed or other things so it would be for special builds.