>>36842806This may or may not be the first time I'm hearing that Looking Glass Knight could summon other players with his mirror...
But yea it's honestly more fun when they integrate the multiplayer these games have more seamlessly into the world like that.
It's why I actually quite liked Halflights fight in DS3 a lot as well.
Since the Adjudicator can summon another player to be the Boss instead of him, kinda like how they did Old Monk in Demon's Souls