Base Class: Barbarian
No Barbarian is more dedicated to honing their craft than the Stalwart. Strong and stout; sturdy and robust, the Stalwart is the apex of physical performance. And yet, ever the perfectionist; their mind is sharper than most of their kind. Natural talent is no substitute for hard work and dedication. Stalwarts work day and night; training their bodies and minds to succeed where others fail. Their rage propels them to push past their own limitations in order to achieve their goals. Cool, calm and collected on the outside; while inside a burning fire rests, ready to burst when the time is right.
Early Riser
Starting at 3rd level, you've learned to make the most of your down time. Every morning at dawn, you may set aside a time to grow your body and mind to succeed in various situations. Choose an ability score. While raging, you have advantage on ability checks made using the chosen ability score until your rage dissipates.
Anger Management
Starting at 3rd level, you've learned to sustain your anger. When you enter rage outside of combat, you can remain enraged for up to 1 hour.
Keen Eye
Starting at 6th level, you're able to predict an enemy's movement patterns. When an enemy makes a successful attack roll against you, they must make their next attack roll with disadvantage.
Peak Performance
Starting at 10th level, you've become a beacon of physical endurance. When entering rage, you gain temporary hit points equal to your Early Riser Modifier x half your Barbarian level rounded down and your hit point maximum increases by that same amount. These hit points remain until your rage dissipates. If you drop to 0 hit points, your hit point maximum returns to its base value.
Focused Rage
Starting at 14th level, you've learned to hold energy in reserve until absolutely necessary. You always enter combat with at least a single use of rage.