Archmage Cunning

Your arcane study combined with innate cunning allowed you to discover hidden magical secrets of incredibly efficient spellcasting. You can cast spells with casting time of one Action as Bonus Action instead. Spell cast this way cannot use spell slot higher than your INT modifier. When you use this ability, you can still cast another spell as an Action on the same turn following the standard spellcasting rules. You can use this ability a number of times equal to your Intelligence modifier and it refreshes after a long rest.