My mono junta is something like: Emeth, bryan, chiro, gertrud/tank, molly/bruce/masamu, dean, wardog, jane ramba 2*
Emeth is essential, because he has nice damage, and +20 attack.
Bryan is very good: a 7 powered soa is allways handy.
Chiro is also a good card (high power, high possible damage), maybe on rescue weeks, you can still use gertrud instead of her.
Gertrud has very good damage, and one of the key abilities in the game: sob, unfortunately 6 power is not very amazing nowdays.
Tank is a decent 3* card, it can block some nasty cards like kenny, or willy. The best would be to use her and gertrud togeather, but it would be too much stars...
Unfortunately you have to use molly if you use gertrud to avoid running out of space.
If you use tank you have the option to use either bruce: a steady 3*, with high power, or Masamu he is very much depending on your draw: if you have either emeth, or chiro in your hand he can be the surprise package (because it is more likely that the soa will be used on them).
Dean and wardog are very good 2* fillers, and you have to use jane ramba 2* to fit into the star requirement of elo.