Werebat
Explorer
Having actually run a free-for-all combat between several demon lords that used these epic stats, I can say that the legendary actions do indeed add to the complexity (and length) of the combat - but I thought that they were fun. I just gave each player running a demon lord three tokens at the start of each round, which they spent as they used legendary actions, putting them all into a kitty in the center of the table to be redistributed at the start of the next round.
I would consider that just giving the epic monsters "extra rounds" will probably not make such combats run much FASTER. But it might make them less dynamic.
I would consider that just giving the epic monsters "extra rounds" will probably not make such combats run much FASTER. But it might make them less dynamic.