Hm, so what would I have to do to become an Iron Vanguard? Find and read the legendary Tome of Gainful Exercise?
Also, I second Rechan's question.
Yeah, something like that. In my hack you'd say that your Goal is to recover the Tome of Gainful Exercise (which has to be a level 14+ magic item) and tie that Goal to Iron Vanguard. You can switch the Goal if you want, but, if you change your Goal after 4th level, you can never take the Paragon Path you associated with that Goal.
The Goal works as a Quest that's always on; if you meet certain criteria related to your Goal you get XP. How much XP depends on what you're doing.
You also have to complete mini-goals along the way in order to level up to 4th and 7th (the new "Tier Bands"); in this case it'd either be discovering where the Tome is (4th) and exploring the hex in which it lies (7th), or spending a set amount of GP or ritual components (7000 for 4th, 16250 for 7th) as you train or transform yourself into a vision of physical perfection. In either case you can't hit 11th level - and start taking the Paragon Path - until you've found the Tome and completed the Goal.
All this Goal-related stuff is tied to how the setting is created and other features of the hack, like Settlements and how they grow, what's on the hex map, NPCs and their organizations, and things like that.
The point of this is to get the player to determine what they want to do while playing the game - what kind of adventures they want to go on - and have that be reflected in changes on the character sheet. The player determines what sorts of obstacles they want to face and how they want their PC to change once those obstacles are overcome.
(Hitting 11th level also changes you from a "normal" person into something much more. The sorts of things you can try to do are expanded into the realm of the near-impossible. At 21st level, the impossible becomes possible. Or that's the goal!)
This is kind of new and I haven't tested it much. I hope to work out any kinks in my new campaign. One big issue that I can see is that the players might have different goals which lead them in different directions, causing problems at the table. It might not be a big issue, but it could be, and I'm not sure how to deal with that.
However, what about vanilla "Just be better at ass kicking" Paragon Paths, like say, the Daggermaster?
Normally you can fit the PP into one of the categories when you look at the fluff text. Daggermaster says:
You and your dagger become one as you master the intricacies of battling with the blade. You are a master of the dagger, able to employ your weapon in ways that no lesser rogue can match.
I'd talk it over with the player and ask them which category they feel fits best based on how they want the PC to reach that point - what they want the PC to do in order to get there. In other words, what they want to do while they are playing the game. They might want to seek out a legendary master of the dagger, or they might want to train a lot. Either way.
I'd be cool with putting that either in Metamorphosis (training with the blade) or Discovery (finding an NPC who is a Daggermaster, discovering an ancient book that explains dagger tricks, or something similar). I originally wrote those categories for Epic Destinies, and I haven't gone through the Paragon Paths to see if they still work. I might have to make changes for that.