Bulwark

Tough as Nails. When calculating Bulwark's AC from Unarmoured Defence, he can use his Strength modifier instead of his Dexterity modifier, plus his Constitution modifier.

Special equipment. Bulwark's Shield grants an additional +1 to AC when carried. 

Brave. Bulwark has advantage on saving throws against being frightened.

Shield Master. Bulwark can add his shield's AC to any Dexterity saving throws from a spell or harmful effect. If he is subjected to an effect that allows him to make a Dexterity saving throw to take only half damage, he can use his reaction to take no damage if he succeeds on the saving throw; interposing his shield between himself and the source of the effect. He can extend this bonus to one target within 5ft once per short rest.

Multiattack. Bulwark makes two unarmed attacks.

Unarmed. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d4 + 4) bludgeoning damage.

Shield Bash. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 12 (2d4 + 4) bludgeoning damage. If the target is a Medium or smaller creature, it must succeed on a DC 15 Strength saving throw or be knocked prone.

Stone's Endurance. Bulwark can focus himself to occasionally shrug off injury. When he takes damage, he can use his reaction to roll a d12. Add his Constitution modifier to the number rolled, and reduce the damage by that total. After he uses this trait, he can’t use it again until after a short or long rest.

Protect. When a creature Bulwark can see attacks a target other than him that is within 5 feet of him, he can use his reaction to impose disadvantage on the attack roll. He must be wielding a shield.