As @mrsemi said, mind vision (ability and/or potion) plus projecting allows you to kill mobs without them being able to retaliate. My second favorite enchantment is grim, with elastic a third, especially with a ring of arcana. The only thing I don’t like about elastic is that there are some enemies, such as gnoll shamans, that you want to keep in melee range.
Thanks for the correction – I’ve fixed it.
I’m glad to know that a T1 run is possible with at least Warden and Rogue. I can’t even begin to imagine how you were able to complete those runs! Respect.
It’s also good to hear about other self-imposed challenges people have tried. Going potionless and/or scrolless is something I’ll try for sure in the future!