Well a good Banish setup consists of Herja, one damage dealer, and all stunners.
And Lance's non-crits do more damage than King T's crits, so Lance is still the better option. And runed and geared right, Lance can crit fairly often too.
Its possible to go with a 2 stunner form without Herja, and then you would need Calvin and can put in 2-3 damage dealer. However, considering that you just got Theseus, you won't be able to use a 2-stunner form without Herja.
I might give it a try some day, and try Calvin, Pompey, Blood, Theseus, Shayd, Aphro.