Twilit/14th

Spell Mastery

At 18th level, you have achieved such mastery over certain spells that you can cast them at will. Choose up to two twilit spells you already know, each of which must be 3-points or fewer (2nd level or lower). You can cast these spells without expending magic points (or spell slots). Overpowering them costs extra magic points as normal.

Whenever you finish a long rest, you can replace one or both of these spells with other twilit spells you know of 3-points or fewer.