Best Champs for a deep Incursion run

Hey guys! Aside from some of the obvious choices like Herc and Thing, who are you guys using to do your runs? I'm trying to do a final push this week to get as far as I can (current best is zone 12), but I'm not sure who else is most useful.
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One note: definitely look at all nodes in a new room before moving up and be ready to improvise. There was a Mephisto boss around room 20 where I had to swap out Heimdall for Torch, then bring back a 5* Heimdall. (That synergy saved me so many revives.)