Flexible Wizardry

(General)
You have learned a trick that makes your spellcasting more flexible.
 

Prerequisites

Spell Mastery, Wizard level 1st.
 

Benefit

When you prepare your spells each day, you can choose to keep a number of spell slots equal to your Intelligence modifier (minimum 1) flexibly prepared. Instead of preparing a single spell within each of these slots, you can partially prepare two spells. Anytime after you prepare these flexible slots, you can spend a Full-Round Action to finalize one slot, choosing one of the two spells to be finished and fully prepared in that slot.