on first look, thats alot of lag, nn more on ground lag effects like blood from corpse use, at least it vanage after a few seconds
so toxic rain spore dots do stack.
''Sources of Increased Area of Effect allow the Damage over Time from each spore to overlap.''
''The chilling area's damage doesn't stack with other Arctic Breath chilling areas''
so Toxic rain have a build in gmp, and it stacks,
when artic breath is a single projectile that not stacks