Worshipper – “Ship” [Campaign 2, Mission 4]

I managed to complete this mission thanks to the Subjugation skill! During the siege of the tower, I focused on killing four Archdevils. I subjugated the Death Dancers and used them to eliminate the archers and high druids standing in the back! By the way, what do you get for 100 elves from the Phantom Dragons, besides access to a new area?