Garthanos
Arcadian Knight
Yup rituals too see also my design ideas on Marshal Troops or my ideas about taking Alarm and making it so in Epic your alarm has to be well epic to detect some of the interdimensional and similar issues.Right, so IMHO practices should be a bit scalable, and maybe that includes "pay more, get more"
and I have linked them in my design to consumables, so a consumable is just a 'condensed practice/ritual' in effect (4e already has that with scrolls, I just assume that potions are similar, you can also consider them to be 'one time use boons').