Dunno if it's been reported or not but here ya go.

[Drizzt]

Obvious exits: west, northeast
The room is barely visible
A thin young white dragon stomps in from west!
A fat young white dragon stomps in from west!
[HP=259/MA=76]:ne
msen
Black Ice Cavern, Freezing Tunnel
Also here: Extrmnator*, BlueSky, big young white dragon.
Obvious exits: east, southwest
A thin young white dragon stomps in from southwest!
A fat young white dragon stomps in from southwest!
A dark cloud passes over you
A cluster of vines swell from the ground, entangling your foes!
[HP=275/MA=91]:e
Black Ice Cavern, Freezing Tunnel
Obvious exits: west, northeast
The room is barely visible

This was on the non-pvp realm, it appears that I can still entangle a room with players in it, get the cloud for it, and they are indeed held.

[schwagg]

Damnit, I was saving this for my next grand exit. 

[DeathCow]

Stupid!