As a bonus action you can inflict some sort of self harm and then titan shift into Jaw Titan for 1d6 minutes. The amount of d6's increases at 5th, 9th, 13th, and 19th level.

As long as they're at at least 1 hit point Titan shifters regen 3 hit points at the start of their turn. This ability can regenerate lost limbs and organs as long as the first condition is met. Your regenerative abilities get stronger at 3rd, 6th, 9th, 12th, 16th, 19th Level. 

1st 3 hit points

3rd 5 hit points

6th 8 hit points

9th 12 hit points

12th 15 hit points

16th 20 hit points

19th 30 hit points

Your ability scores each increase by 1.

Titan shifters reach adulthood in their late teens and can live up to a little less than a century but if your Titan shifting ability is used your lifespan is set to 12 more years.

Humans vary widely in height and build, from barely 5 feet to well over 6 feet tall. Regardless of your position in that range, your size is Medium.

Your base walking speed is 30 feet.

You can speak, read, and write Common and one extra language of your choice. Humans typically learn the languages of other peoples they deal with, including obscure dialects. They are fond of sprinkling their speech with words borrowed from other tongues: Orc curses, Elvish musical expressions, Dwarvish military phrases, and so on.