I like trash mobs as much as the next DM, but this was overkill. The repeated darkness effect really eliminated one of the three Lts, since the party had been dealing with a) a shadow already, and b) fighting in the dark for the last 1 1/2 h at this point. The other 2 Lt were also a joke compared to the endless mobs of 30HP newts that only serve as resource siphons. Chucked one player of the bridge in the last fight, so that made me feel a little better, but with the triple-nerf and the ally dragon his days were numbered.
[3 of 5 Stars!]