Given the gods of Last Epoch, I think it would be cool if there was a minion mastery that has to do with the pantheons of Eterra. The Sentinel has paladin in it, so I don’t think it would be a stretch to have some sort of Divine summoner that draws its power from the deities of Eterra.
Manifesting the powers of Rahyeh, conjuring in one of Lagons tentacles to aoe a large area, OR (the reason for making this post) summoning some sort of divine minion(s). These could be anything from vestiges of the gods themselves, high tier followers, elementals etc.
There would be a lot of amazing possibilities for a minion mastery based on this stuff.
Looking forward to S3, keep up the good work!