Beastial Rager

The bestial rager's tend to have been raised by animals or had a lot of contact with them, with time to study, they can take on the aspect of an animal when they go into rage, they can't grow wings, or tails, but they learn the feats, the defenses, and attacks much similar to the actual monsters they have learned from. Unlike most barbarians intelligence helps them memorize more animal combat styles.

Style of the beast

3rd-level style of the Beast feature

When you enter your rage, you have learned to fight like a monster, you can memorize as many monsters as your proficiency modifier plus your intelligence and you gain proficiency in animal handling You can study monsters of half your level in CR, and must take one day per CR to learn it, these are things you can learn in down time, or talk to your DM about learning them with your background.

Style of the Monster

6th-level Style of the Monster

Your power has grown, and with that, you can now study new types of monsters to memorize, Plants, Constructs, and Monstrosity. On top of that, a bestial rager can now merge two of there memorization into one, to allow for a creature of there level in CR to be memorized

Style of the Outsider

10th-level Style of the Outsider

Your mind and body has grown to now imitate more creatures, you can learn to fight and use powers of Fey, Fiends, and Celestial, if they are willing to let you learn from them.

Style of the Ancient

14th-level Style of the Ancient

You have learned the secrets of the ancient, you can now tap into the power of Dragons, Elemental, and Aberration. To study some of the stronger dragons, one must persuade them to let them study, can be worked out with player and the DM, allowing the rager to learn the higher end dragons at the cost of two memorization slots. With elemental and Aberrations one must persuade them to let them learn from them. Any prelearned Monsters must be worked out with DM.