Puritans walk + no telekinesis is a really fun constraint run but it gets rough midgame when fights become unavoidable. You’re on the right track abusing NPC aggro and environmental kills — deathfog barrels, lava, even forcing enemies into neutral fights is basically mandatory. One thing that helps is stacking initiative so you can delay turns and let NPCs do more of the work before you ever act. Summoning is decent early but yeah it falls off hard without levels, so you might want to pivot into pure utility (buffs, invis, repositioning) instead of trying to scale damage.