To one-shot lower content:
Hero - any class, any weapon that’s not blue or green
Rowanne
Maraji Queen (must be traited, otherwise replace with something else.)
Leprechaun (must be traited)
To get rid of anything else:
Hero - any class but Stormcaller or Sunspear*, any weapon that’s not blue or green or purple
Venoxia
Queen Beetrix
Leprechaun (must be traited)
(* unless those classes have not been traited. The perma yellow / red storms are a big no-no on this team, believe me I’ve tried.)
My weapon preferences at the moment are Doomed Axe and Dragon’s Eye, respectively, but I don’t tend to use the Axe ever because Rowanne is funny. Dragon’s Eye on the other hand is a color-appropriate generator weapon that doesn’t create a storm of the wrong color (like Mountain Crusher does) and can also nerf worrying troops like something with Submerge on it.
Usually use the Rowanne team for AB tasks and anything similarly small. Venoxia can handle most PVP, explore 12, dungeons, etc.