Impossibly Hulking

There are countless legends speaking of warriors as mighty as you, their weaponry cast away in their fury and replaced by trees or boulders.

When you enter a rage, you can spend 8 exertion points to increase your size category by two steps (from Small to Large or from Medium to Huge) for the duration of your rage. While your size is increased, your Speed increases by 15 feet, your weapon attacks deal an extra 2d4 damage, your maneuver DC increases by 4, and your reach increases by 5 feet.

In addition, you gain proficiency with improvised weapons. Improvised weapons that you throw have a range of 50/150 feet. While you are raging, one-handed improvised weapons you wield deal 1d8 for Small, 1d10 for Medium, or 1d12 for Large; two-handed improvised weapons you wield deal 2d4 for Small, 2d6 for Medium, or 2d8 for Large; and your range for thrown improvised weapons doubles.