Strat For Li

So during Legendary Island, I tend to use a lot of potions on range characters such as Death Metal, and Dr Legendary's first phase. It mainly occurs due to them spamming flamethrower. Now I use a Grimtrap build with 10/4 MR, and 8k spins, so I want to know, what can I do to reduce the amount of potions used per run?
Regards,
Inferno

 

Death doesn't even have flamethrower
but anyways just push them into a wall with multi-hit and if they use a spell run away from them with vanish. Proceed to spam stunlock with spin/smoke bomb when you can.