I'd probably go with Drex in a Lifesteal or Regen set.

No reason Yannica can't do it, at 6* would probably be fine without Lifesteal too.

Any advantage in running 4 champs getting scrolls in minotaur vs 1-2-3 ? Beside the exp if you run them before they hit 6-60.

I wuld recommend Artak. Best option by far. And you can use same build to duo ice golem, dragon and spider while you;re at it. I put mine in relentless gear, not even crazy stats and he can do it all comfortably.

More xp. Remember it's divided evenly amongst everyone, including the one at 60.

I think artak would take longer than others cuz he is a burn related champ and not an explosive one. But yeah, i guess he can solo it

Tweeked Yannica a little and managed to do it! Had to steal some equips tho..good part was that i saw i have a relentless 6* glove critical dmg with ascencion of critical dmg and great subs. It was like finding money u forgot in a coat

Nice!  How's the time look?  Getting a solo champ is such a resource save.

Unfortunately it is around 1:20 to 1:40