/ onemanaleft
PoB from my week 1 budget:https://pobb.in/1RGzrEnlvpsr
Realistically there are 3 methods for mana.
1. brand tech on long sustain with no kills. might be useful for bossing
2. Thrill killer/cinderswallow urn for %mana on kill and then if you're mapping youll always have mana sustain then just kill bosses in 1 cloak. for t16 blasting this is all you need
3. Foreboding mana flask, i have this video on it • Manabond Mjolner Hierophant - The Mana Flask but this can cover all your mana needs provided you can gain approximately 8 flask charge per second which is easy while mapping