More acrobatics, and times for the one for level 16!

Arcane Expertise Variable actions Feat 15

General Skill
Prerequisites legendary in arcana

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You’ve learned so much you can hang with the most talented wizards now! Once per day, you can choose an arcane 2nd level spell that is not uncommmon and attempt a DC30 arcana check. If you succeed, you cast the spell using as many actions as that spell normally takes. You use either your Charisma or Intelligence as the spell casting ability and are considered legendary proficiency to determine spell casting attack or save DC.

Thoughts?