Faerie Boss - same as Standard

Kill 2 helper mobs then Kill Main mob
They will put up a Reflection Buff - Chloro can remove the effect with "Consumption"(other classes might be able to as well)

Fat Amphibian Guy - same as standard

Drops ground AE - stay out of it

Tree Boss

Tank Boss near 1 Hive
Tank agros 10 waves of moth adds - everyone ae's
Once adds die kill boss

Big Fawn Boss

Loop around behind the mobs so can pull from back (makes easier for tank to agro his 2 bard buddies)
Kill little fawns first - good to silence them to keep from healing each other.
Boss charges

Big Snow/Water elemental

Spawns a Cyclone with ground AE on random player - get away from AE
Can have about 7 of em up at once
Everyone other than tank stand together so that you can control where the next one will spawn.
Stay out of AE's and you win.

Lord Twyll

Has Spring, Summer, Fall phase then Twyll - each phase is timed and will start whether you have finished previous one or not - DPS is good.
Spring has 1 Faun that will randomly Fear people - Kill him
Summer spawns Fire guy that will split into 2 flames then into like 4-6 fireballs - AE as appropriate
Autumn is a big treant that summons a bunch of moths - beat on treant then AE moths then kill treant
Lord Twyll - Everyone other than tank should get up on left rock. There are 3 spiraling ground AE's that swirl all over the peninsula. Everyone being grouped together means that the healers only have to AE heal once to heal everyone rather than constantly trying to keep each person up with their own individual heals.