Byleth

Superiority Die. Byleth has 5 superiority die that they can use for their attacks that require them. The superiority die are d8s. Byleth regains all superiority die after a short or long rest.

Aura Of Protection. Whenever Byleth or one of their allies within 10 feet of them makes a saving throw, the creature gains a +5 to that saving throw if Byleth is conscious.

Aura Of Courage. Byleth and all of their allies within 10 feet of them are immune to being frightened if Byleth is conscious.

Spellcasting. Byleth is a 2nd-level spellcaster. Its spellcasting ability is Charisma (spell save DC 19, +13 to hit with spell attacks). Byleth has following Paladin spells prepared:
1st level (4 slots): Heroism, searing smite, command, compelled duel, thunderous smite
2nd level (3 slots): warding bond, zone of truth

3rd level (3 slots): spirit guardians, aura of vitality

Multiattack. Byleth can make two attacks when they chose to take the attack action.

Second Wind. Byleth can draw upon a well of stamina as a bonus action, doing this Byleth gains 1d10+9 hit points. Byleth can use this feature once per short or long rest.

Action Surge. Byleth can push themselves beyond their limits, they can activate this and take one additional action on top of their regular number of actions this turn. Byleth can use this feature once per short or long rest.

Lunging Attack. Byleth spends one superiority die when they make a melee attack to extend the reach of that attack by 5 feet. If the attack hits then add 1d8 to the damage.

Commander's Strike. Byleth spends one superiority die when they take the attack action on their turn. Byleth forgos one of their attacks and uses a bonus action to direct one of their allies to attack. That ally uses their reaction to make an attack against a target adding 1d8 to the damage of that attack.

Maneuvering Attack. Byleth spends one superiority die when they hit a creature with a melee weapon attack. Byleth can direct one of their allies to move as a reaction to move up to half its speed without provoking attacks of opportunity. The initial attack also deals and extra 1d8.

Rally. Byleth can spend a superiority die on their turn to use a bonus action to bolster one of their allies. That ally gains 1d8+5 temporary hit points.

Sweeping Attack. Byleth spend one superiority die when they hit a creature with a melee weapon attack. Byleth choses another target to hit within 5 ft of the original target, and also within range, to hit. The second target takes 1d8 slashing damage on hit.

Divine Sense. Byleth can sense the area and all fiend, celestial, and undead within 60 feet of Byleth are revealed to them . Also any area or item that is consecrated or desecrated are revealed to Byleth. Byleth can use this feature 6 times before they run out of charges. Byleth regains these charges after a long rest.

Lay On Hands. Byleth can touch a target and restore some of their hit points. To do this Byleth takes hit points from a pool of 55 hit points. Byleth exchanges these pool hit points to an allies hit points. Byleth can also cure a disease or poison by using 5 hit points on the target. This does not work on undead or constructs and Byleth's hit point pool replenishes after a long rest.

Divine Smite. Byleth enfuses the power of a celestial into their sword letting them deal an extra 2d8 radiant damage to the target. To do this Byleth expends a 1st level spell slot and the damage increases by 1d8 for each spell slot above 1st level. If this is used against and undead or fiend it deals an extra 1d8 damage.

Champion Challenge. As an action Byleth challenges a foe to a duel. The target is compelled to agree. The target must succeed a DC 19 Wisdom saving throw. On a failed save the target can't willingly move more than 30 feet away from Byleth. This effect ends in the target dies, is incapacitated, or is moved more than 30 feet away from Byleth.

Turn The Tide. As a bonus action Byleth can bolster an injured ally. Each creature of Byleth's choice within 30 feet of them gains 1d6+5 hit points if they are below half their maximum hit points.

Divine Allegiance. Whenever a creature within 5 feet of Byleth takes damage, Byleth can use their reaction to take that damage from their hit points instead. This damage that Byleth takes cannot be reduced or prevented.

Know Your Enemy. Byleth can spend 1 minute to learn if a creature is stronger than them.

Indomitable. Byleth can reroll a saving throw if they fail it. Although they must use the new roll. Byleth can only use this feature once per long rest.

Sword Of The Crusader. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 17 (1d8 + 13) slashing damage and 4 (1d8) radiant damage