Walkthrough of every campaign levels on impossible difficulty with 3 stars:
Gray Ravens:The High Cross:Waterfalls Trail:Redwood Stand:Royal Gardens:Gryphon Point:Rockhenge:Grimmsburg:The Crystal Lake:Neverwonder:The Unseelie Court:The Ascent:Arcane Quarters:Mactans' Retreat:Shrine of Elynie:Galadrian's Wall:Blood Quarry:Beheader's Seat:Dwaraman Gates:Tainted Pit:Duskwood Outpost:Duredhel Outskirts: