Preparing Your Feats, Adventurer Art
I'm still working on spells! As it turns out, some of the weirder, high-level vancian spells have to be warped a lot when converting them to at-will abilities with boosted effects. I have about ten more spells to build for the playtest document, then I check over the Equipment and Magic Items chapters, then we should be good to go.
In the meantime, here's part of the intro to the Feats chapter, which explains how you decide which of your feats you have access to each day, how you can leave "slots" open for later preparation (similar to spell slots in 3E), and how you can use boosts to immediately prepare an unprepared feat so you can use it in an emergency.
Eventually (after you’ve gained a few levels), you’ll learn so many feats that it’ll be too much to keep in your head all at once. Preparing is like studying before a big test, or warming up before a sports game—you’re refreshing your mind and body about things you already know, focusing on what you think you’ll need to know that day, and ignoring the stuff that you don’t think you’ll need that day.
You can prepare your feats after resting for 4 or more hours. Normally you prepare after you’ve rested for the night (a full 8 hours).
Once you prepare your feats, they stay prepared until you decide to change them after resting. (In other words, if you forget to say what feats you prepared today, just use the ones you prepared the last time.)
If you don’t prepare a feat that day, you don’t get any of that feat’s benefits. For example, if you’re a wizard who learned Leather Armor Training (so you can wear leather armor instead of just cloth armor), if you don’t prepare Leather Armor Training, you can’t wear leather armor that day. Not preparing a feat is a lot like not knowing that feat at all—if you don’t prepare it, it does nothing for you.
The number of feats you can have prepared at once is equal to your level + 5. This number is how many "feat slots" you have. When you prepare your feats, you don’t have to “fill” all of your feat slots right away—you can leave some slots open, and use the Slow Preparation Rule or the Fast Preparation Rule to prepare them later.
The Slow Preparation Rule: You can spend 1 hour resting to “fill” one open feat slot with a feat you know. Until the next time you rest to prepare feats, you can use this feat as if you had prepared it right after resting.
The Fast Preparation Rule: You can spend a boost to “fill” one open feat slot with a feat you know. Until the next time you rest to prepare feats, you can use this feat as if you had prepared it right after resting. Spending a boost to do this doesn’t count toward the normal limit of one boost per round.
Here's an illo by Gerald Lee of an overburdened adventurer.