I'm a solo wizard I wish a solo wizard can stand on a sigil and it will adjust the boss fight for one wizard fight, instead of four, if two wizards go on sigils the boss fight is set for two wizards and so on and so on
this way it makes it fun for all solo wizards out there to complete the game and quests by them self.
In most cases the fights ARE balanced for one wizard to struggle, but succeed, with only a single wizard on a sigil to a boss battle. At three wizards it rebalances by adding in 2 more minions.
I don't see how what you're asking for differs from what already exists.
