OOC: Fight against the Demons
By this point, the characters are beginning to realize that the Demons have sufficiently high DR (10) that most melee hits are not going to do enough damage to penetrate the DR unless a) a critical hit is rolled or b) sneak attack damage is involved. None of the energy weapons (fire, frost, shock) seem to have harmed the demons either.
The Glabrezu is size Huge and it basically replaced where the mirror was, so everyone is in reach of it and everyone can reach it from where they are standing.
Several critical hits have been rolled so far (Dariel rolled 3 in one round) and I've been granting sneak attack damage to anyone attacking the Glabrezu who has rogue levels, since there are drow all around the Glabrezu.