Make attack rolls against the webbing, with disadvantage. Only slashing damage will help. Do enough damage and you're free. The webs have a really low AC, but rolling a 1 in this case will mean you hit yourself.
Others not in the webbing can help cut you free without the disadvantage.
Fire could also likely free you quickly, but you would have to be enveloped in it to be freed more swiftly than other methods.
Edited: daishain on 1st Jun, 2017 - 3:45pm
So if Poljen's first attack frees him, will his regular movement get him to the beast? I know he has no Bonus Action to Dash since he used it to Rage, but if it is close enough, that second swing goes against the creature. What in God's name is that unholy thing, anyway? Yuck… Anyway, if his movement does not get him there, I guess he can't go any further since he already used his Action to Attack the webbing, right?
Climbing up to the ledge will be difficult to manage in just one turn. (22' up, which will cost 44' of movement, call it 45' for simplicity)
Poljen's used both his action and bonus action as mentioned, so yeah, he's only getting partway up.
I'm probably giving stuff away here, but the question needs asking. For Poljen and anyone else looking to spend time in between turns clinging to the rock: If confronted by a nasty incoming attack, would you: A, make a reflex save to avoid damage, but in so doing fall to the bottom whether or not you make the save. Or B, forgo the reflex save, and take the damage head on so you can be relatively sure of getting up to the top the next turn?
Looks like we're just waiting on Cratol at this point. Kntoran's connectivity is unreliable at this time, I'll give him a few hours to post, then go on without him.
As to what the heck this creature is, people are free to make history and/or Arcana checks to recognize this thing. I'm going to say Velon gets to make a History check with advantage in this case, as this kind of thing is of particular interest to him.
Edited: daishain on 1st Jun, 2017 - 9:04pm
Hmm… I think Poljen will suck up the damage, then continue on the attack. Just let me know if for the next round you will need another Athletics roll to finish the climb, so I know to include it if need be. Thank you.
Oh wait, hang on… Poljen's speed is 40... So he should be very near the top, right?
Edited: PaulNelson on 1st Jun, 2017 - 9:07pm
Velon is fairly certain this thing is called a Blackspawn Stalker, and that its kind are a twisted creation of Tiamat during her wars with Bahamut. But he does not recall much else about them.
And yes, at least for now, Fay and others are certainly free to fire your bows at the thing.
Edit: nice roll there Abn. Fay recalls that the Stalkers are one of several creatures known collectively as the Spawn of Tiamat. The goddess twisted the form of many of her own children in an attempt to produce creatures that could fulfill more specialized functions in her march for conquest. The Stalkers in particular were intended to serve as ambush predators and guardians, and are perhaps best described as an unholy blending of a black dragon and a giant spider, possessing many of the most troubling aspects of both.
Edited: daishain on 1st Jun, 2017 - 10:24pm