offhand hacking explosive concoction

Using a weapon in offhand as a stat stick to boost explosive concoction's damage.



You equip a high stat requirement weapon in main hand (Like Mjolnir), equip a sceptre with good "stat-stick" mods in your offhand. remove enough stats to make Mjolnir turn red so it becomes disabled.


Now you have an offhand weapon with juicy stats instead of a shield, giving you WAY more explosive concoction damage than a shield could give you.



From this thread:
https://www.reddit.com/r/PathOfExileBuilds/comments/orubrm/psa_you_can_use_a_sceptre_as_an_offhand_with/

Video with proof of it being done (using Ewar's mirage for extra proj)

https://youtu.be/1mvuZx0lDnE

This could probably also be done with Beltimber Blade / Grelwood Shank for +2 projectiles

It doesn't seem like a bug. The skill gem is very clear that it "requires an empty main hand." Seems intentional that it works with anything in off-hand. Quiver, shield, or weapon.

And it's normally not possible to have an empty main hand with a weapon offhand.
I'm assuming they balanced the skill with the available mods on shields, not thinking about the possible stat stick ramifications.

They already killed stat sticks in the past (can't offhand a mace and Reave with a sword, the skill gets deactivated with a single invalid weapon type equipped), I really doubt it's interned behaviour in this case.

Yes it is possible. Dual wield, vendor main hand. Main hand is empty (not just blocked by an unuseable weapon), off-hand is not.