Sir Derf
Adept
How about a pet with a feeding effect or an expiring building that, when active would influence the odds of recipe appearance in particular ways?
Increase chance of instants, decrease chance of relics, increase artifacts, decrease culture buildings?
Or that decreases the costs to craft items?
Increase chance of instants, decrease chance of relics, increase artifacts, decrease culture buildings?
Or that decreases the costs to craft items?