Is 2-player bad? Most of my chances would be 2-player or maybe 3-4 occasionally.Also, I would plan on playing with 3 or 4 players for Argent. 5 is just too many and the game takes forever; I've done it a few times now, both against my better judgement (usually last-second joiners). 'Mancers even pushes it to 6 players IIRC, but there is zero chance I would ever play that many, the game is too huge. There is very little time scaling, so each additional player increases the round length pretty significantly.
I have 'Mancers from the first kickstarter and haven't even opened it TBH. There is so much in the base game it's just not necessary right away.