I got a 1:07 fastest with:

Soccer Ed (Valhalla/Cosmic)
Horus (Blight/Purge)
KP (Greed/Warlord)
Maxed SLOL (Avenger/Sustain/Cosmic)

But one too many defeats.

Trying same basic team but with Ghost (Alchemy) instead of SLOL.

All teams I have used have had a defeat or more than 1 so far but a lot of them are consistently pretty quick.