Great points... I might replace my giant hill with the alchemist later then.
You habe the 3 must run in Engineer, Angel, and Marksman. Both smurfs run these, and I've got an entire Ordinary one with Marader and tje ghost buster lookin guy. The Froat witxh is a better choice than those 2. My second smurf has a Paladin and Thunder God and I just rolled a Succubus with the 200 wins bonus. 3 Legendaries on my non-pay lol. I'm lucky period. If you want to run all ordinaries, I would suggest a 3 or 4 party setup. Add Frost Witch for the 4th. 3 or 4 heroes lets you go up a star on 2 without adding might. 20 levels and 2 stars on 2 heroes is greater than adding 2 heroes of poor quality.