Sorry for the doublepost, but here's the rundown with playing without weapons:
- the beginning is very hard, you have to grind Skeleton and Axe to be able and do the first boss (Flying Armor)
- right next, low mana keeps you close to candle respawns and save areas
- then you learn to use mana conservative souls. Now here's fun, because you keep switching souls at lightspeed for different kind of enemies
- you will definitely use mostly if not all the souls you receive, with lots of variety. Not using mandragora the whole damn game
- all bosses require mana potions, and you don't even need to grind much to be 100% effective against: alamaric sniper, axe armor, lilith for mad spam
There's still room for experimenting: burer + hell boar kills Abaddon in 20 sec.