My list was:
Iron Lich Asphyxious
Minimum unit of Choir of Menoth
We had no scenario other than caster kill. Protectorate started game.
Seether with Scything Touch one-rounded Crusader with +2 armor spell. Parasite on Choir of Menoth and Asphyxious' feat killed all but one choir member. That one was shot down with possessed Repenter.
Amon had a camp of five focus points. Asphyxious had cast Parasite on him. Because Crusader died that easily I thought I'd make Amon quite careful if I'd damage him with Slayer. So, Slayer charged Amon and out of a whim I did Combo-Strike. Damage roll was so high that even with damage reducing effect the High Allegiant was one-shot. Oh, wait! No he wasn't. He passed his tough roll.
Next turn what's left of Protectorate wrecks both heavies and one of the arc nodes. But Amon is at one hit box. What could possibly go wrong?
Well, Asphyxious missing three times and scoring only two attacks - both which were prevented by a successful Tough roll. Then one of the arc nodes come to bite with boosted attack roll, but it's a miss. As a last resort Machine Wraith possesses Repenter and the light warjack goes and takes a swing at its master. Missed.
And then Asphyxious was alone in the middle of, albeit smallish, enemy army. And died. As a small consolation Amon was not able to deliver the killing blow. He missed even more attacks than Asphyxious did.