Master Shapeshifter

You gain the following benefits.

Ability Score Increase. Increase one ability scores of your choice by 1, to a maximum of 30.

As a Bonus Action, you can cast Shapechange without components, concentration or a spell slot. The spell lasts for the duration or until you dismiss it as a free action. Once you have cast Shapechange you cannot cast it again in this way until you have finished a Long Rest. You do have Shapechange prepared and it does not count against your spells prepared.