Monthly Mojo boss!
I've seen people complaining about this boss. It isn't simply reading the nodes, it requires player to have & rank up specific champs. In my opinion, this is too narrow to be considered "free content". Unlike other content, where players say, these champions will make this easier, it gives you the option. This monthly quest means I have to rank up a series of mutants or other random synergies for one boss? Bogus. I come here for fun, not to study quite that intently. There's well enough content like that for the "star" players.