Update on purchasing spells

Instead of boons (Elements, Arts, and Conduits) costing 2 experience each with a possible discount when you Master a Spell, they will instead cost 1 experience each.  However, learning a new spell will now require spending 2 experience, or 1 experience when you score a strong hit on Master a Spell.  This way, gaining new asset like abilities will now be similar in cost to purchasing or upgrading a standard asset.

This will be added to the document the next time it's updated.