Uller
Adventurer
Yeah...That's pretty much what I went with. As long as you are holding on no disadvantage. But if you are using both hands to do something (like detach a darkmantle from your face) then I think disadvantage will come into play.I do not think that being blinded would impose disadvantage to hang on to the webbing. I think that is extremely harsh...
I agree with the possibly hitting on a natural 1. I was going to argue that taking special care to strike higher than head level should count for something, but I imagine that a natural 1 would include slipping which would bring my strike significantly lower.
I very rarely use any sort of 'fumble' rules. But when you're doing something risky like trying to hit a foe in the same space as an ally, it seems appropriate. For the ranged attacks, the rule I said about is definitely not standard for me. But there was so much going on (blinded, in the same space, etc), to me it seemed like firing ranged attacks would be even riskier.