—
Hurlock omega: Unique Hurlock alpha, stronger than the other alphas. Nearly killed the party if not for Wynne miraculous emergency magic healing trick, meaning Hawke or the Inquisitor wouldn't have a chance against him.
—
Ancient darkspawn: Unique really old (and therefore, powerful) darkspawn.
—Unique darkspawn individuals not as powerful as those mentioned above, but still stronger than their normal variants. This include three
Hurlocks generals (one in Return to Ostagar, two in the battle of Denerim), the
Hurlock vanguard (in RtO — possibly the same one who kills Alistair in the Darkspawn Chronicles), the
Genlock forge master (stronger Genlock seen in the franchise so far), the
Risen Ogre (unique, stronger ogre from RtO).
—Whiterfang: Unique, very old (and therefore, really powerful) abomination.
—
Shah Wyrd: Unique rage demon in the Circle, stronger than the average rage demon.
—Lot of golems (one golem is said to be equiparable to a dwarven battalion). Granted, Cassandra killed a lot in her movie, meaning Inky maybe is able to do this as well. But the Warden also fought against stronger variants of the golems: the
Sentinels and
Watchers of Amgarrak and the unique
Inferno golem of Kal'Hirol.
—Flemeth: In dragon form. She has to be as strong as the Guardian of Mythal, meaning the Inquisitor can catch the Warden here.
—Gaxkang: Well, not really a unique feat, as Hawke and Inky defeated this guy companions.
—Archdemon Urthemiel: Granted, Hakkon seems to be powerful enough as an archdemon, but that leaves Hawke even behind.
—Lots of Children, that as already stated are stronger than even ogres.
—The
Baroness, another really old and really powerful abomination. Possibly the strongest abomination we have seen in the whole franchise so far.
—The Queen of Blackmarsh: A unique, more powerful high dragon.
—The Dark Theurge: Another really old, really powerful unique demon, including as well his "evolved" form: an ogre abomination.
—A least two broodmothers, including a unique, more powerful one, The Mother.
—A lot of sylvans (that according to Last Flight, is necessary an army to defeat sylvans), including two unique variants, seemingly more stronger than the normal ones: the Grand Oak and the Old One.
—The Architect, who is at least as powerful as Corypheus without being infused in Red Lyrium. This evens Hawke and the Warden, but Inky fought a stronger variant of Cory.
—A harvester, and it seems the Warden fought against a stronger variant than the one Hawke fought in DA2.
—A varterral: Hawke also defeated one.