Make blood pact rage/ward timers refresh whenever an avatar is summoned for the duration of the ability, and extend the duration of the SP by 15 to 30 seconds to accommodate casting times. Bam, no more spamming Volt Strike as fast as possible.
Conduit already reduces those timers to zero. I don't understand. Extending the duration also doesn't make make switching avatars to use more different abiltiies any more enticing.

The issue with AC has always been that it is artificially nerfed in specific contents/areas because it's stronger than SE would like it to be (even though it's not even THAT crazy unless your loadout is perfect). I don't think the nerf was really even justified amidst all the melees that can pump out WSes with tends of thousands of damage in the span of a few blood pacts with (at least from my perspective) comparatively little effort. I don't really think AC is that amazing unless you marshall an army of SMNs just to use their ultimates, but the thing is, you can gather multiples of many jobs that can still pump the damage in a short timespan.

SMN is sometimes used for buffs; but we all know that's not what what SMNs really want to be sought for.