This seems like a very weak skill to me as is. It's not even a poor man's snare. About the only good thing about it is when it tells you someone stumbled through it. But like snare it only lasts once. I propose that the bramble pit last longer. At least then it will seem like you get some use out of it.

You can use it as an alarm, or you can use it as a dexterity dropping maladiction, and as a bonus you even get some damage out of it.

It doesn't work when they're flying. It doesn't lag any like briars (druid commune). It doesn't prevent fleeing like wall of thorns did.

Plainsrunners lose the best ranger skill in the game (snare, duh) for a bad terrain and no replacement.

I propose bramblepit have some wall of thorns type capability and fly only reduces the likelihood of hitting it. Call it bramblepatch instead of a pit.

It's basically a magic mouth that might nip someone if they stumble into it without fly up.

And it seems to have a high fail rate.

Old log:

<923/923hp <100%> 94%m 100%mv 12419tnl (35.01%) FIELD 3 PM> > where
Nyii has arrived.
The ground seems to open up beneath Nyii, as she stumbles into a nest of brambles!
A bramblepit's thorns *** DEVASTATES *** Nyii!
A bramblepit tells you 'Someone has stumbled into your bramble pit.'
You step out from your cover.
Your surprise attack === OBLITERATES === Nyii!
Nyii yells 'Help! I've been ambushed by Vreksoek!'
Nyii is writhing in agony.

<923/923hp <100%> 94%m 100%mv 12419tnl (35.01%) FIELD 3 PM> People near you:
(PK) Nyii The Center of the Keep
Rikizik A Wide Trail
(PK) Vreksoek The Center of the Keep
Nyii is writhing in agony.

<923/923hp <100%> 94%m 100%mv 12419tnl (35.01%) FIELD 3 PM>
You barely manage to turn Nyii's cut aside.
Your thrust MASSACRES Nyii!
Your thrust MANGLES Nyii!
Nyii dodges your claw.
Nyii is convulsing on the ground.

<923/923hp <100%> 94%m 100%mv 12419tnl (35.01%) FIELD 3 PM> > dirt Nyii
Nyii is blinded by the dirt in her eyes!
Your kicked dirt grazes Nyii.
Nyii is convulsing on the ground.

<923/923hp <100%> 94%m 100%mv 12419tnl (35.01%) FIELD 3 PM>
You parry Nyii's cut.
You parry Nyii's cut.
Your thrust MASSACRES Nyii!
Nyii is DEAD!!
Horrid black mist spirals out of the mouth of Nyii as she falls.