Do I put it on Thrash Blade in my main hand or Vanquishers Sword in my off hand? Typicaly I would guess the fastest weapon but Thrash Blade is possible faster even in main hand. (It burned through an Instant Posion IV faster than Vanquishers did).
(This is the free enchant from a Badlands quest. I am not gonna bother with other enchants until I get a prebis.)
I’d personally recommend having it on a separate weapon that you can remove at will or just get fiery weapon instead because the quest item is an AoE CC breaker and a huge pain in the backside.