Champion

At 10th fighter level, gain 7 fighting skill tree upgrades.

Gain an extra fighting skill tree upgrade at 11th and 12th level.

At 10th fighter level, the critical range of all your attacks is increased by 1.

At 11th fighter level, you gain +3 max rest dice, +12 to max HP,  and +1 to all d20 rolls.

At 12th fighter level, you can spend a rest dice at the start of your turn to gain advantage on all saves, death saves, block checks, attack rolls, and skill checks until the end of your turn.

This has a cooldown chance of 1d4 > 3.