This is a pretty cool archetype, especially outside of combat. The Tragedian shines in games full of social maneuvering and political intrigue. This could add very unique and interesting moments to your games. A homebrew with tons of potential.

At first glance looking at this archetype, I thought "This doesn't seem especialy useful."

However on review I relaised that in a certain type of game the Tragedian has the potential for a lot of fun. Specifically highly social or political games where you interact with potential enemies outside of combat. The key thing is being able to interact with a creature for a minute to get the benefits of Student of Soul's Condition. This ability is less useful in the context of dungeon crawls or fighting enemy types not on the list, however I believe the bard class itself will pick up some of the slack.

Certainly worth the suggested price, I will be adding this subclass to my stable of potential homebrew for my players to access.