Qurash the Reviled was the last one. Spawned on an instance which also had Arsect, the unique spider that captured a treasure goblin. I had my doubts as to if the area could spawn one of the monsters needed for the achievement if Arsect had already been encountered but there we are. Two unique monsters in the same area.
The new Adventure Mode is great for hunting unique creatures on the list. You can check every act when you first log in and see if there are any bounties for creatures you need.
Throbble and I ran into
Saha the Slasher on our way to get the bounty on
Gart the Mad this week. and we just polished off a couple more this morning. (1 from act 3 and 2 from act 5!)
Once we fill out this list a bit I'll post the unique monsters we need in act 5. This monster list can be found in the achievements under Challenges, sub category Act V, "Special Assignment".
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