With a brain like yours, everything is a problem that can be solved with a little more thought. When you take this feature you gain proficiency in Strength and Charisma saving throws. At 8th tier, you also gain proficiency in all other saving throws.
Additionally, you have begun to apply your skills to other proficiencies. You may elect to take the average of all of your current skill modifiers as a bonus to every skill that you do not have proficiency in.
Lastly, at any time if your Intelligence ability score becomes 30. You gain Auto-Success on all Intelligence skill checks, saving throws, and attack rolls.