Witch/10th

Adaptive Magic

At 10th level, you can incorporate other schools of magic into your own. You can learn any one spell from any spell list. This must be a powered spell of 5-points or lower (3rd level or lower). It does not count against your Spells Known. Whenever you cast a spell gained with this feature, you must expend 1 more magic point (or one spell slot level higher) than normal, which counts against your Magic Limit

At 14th level, you can learn a second spell from another school of research, which must be a powered spell of 7-points (5th level) or lower.