Chog the Penitent

Keen Smell. Chog has advantage on Wisdom (Perception) checks that rely on smell.

Danger Sense. Chog has advantage on all Dexterity saving throws caused by effects he can see while not blinded, deafened, or incapacitated.

Regeneration. Chog regains 10 hit points at the start of its turn. If Chog takes acid or fire damage, this trait doesn't function at the start of the troll's next turn. Chog dies only if it starts its turn with 0 hit points and doesn't regenerate.

Unarmored Defense. Chog as an armor class equal to 10 plus his Dexterity and Constitution modifiers when he is not wearing armor. 

Reckless Attacker. When Chog makes his first attack on his turn, he can decide to attack recklessly, giving him advantage on melee weapon attack rolls using Strength during this turn, but attack rolls against him have advantage until his next turn.

Divine Fury. When Chog is enraged, he may add 4 (1d6 + 1) necrotic or 4 (1d6 + 1) radiant damage to his melee attacks.

Warrior of the Gods. If a spell is used to restore Chog to life, it may be done without material components.

Coin of Kismet (3/Day). On any instance where Chog is to roll a 20-sided die, he may instead flip a coin. On a heads, he experiences an absolute success on his endeavor (within reasonable means). An attack roll becomes a critical hit, an ability check succeeds flawlessly, knowledge is plucked from the aether. On a tails, however, naught but doom and disaster will befall the intended action.

Multiattack. The troll makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage.

Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage.

Rage (3/Day). Chog gains advantage on Strength checks and saving throws (not attacks), +2 melee damage with Strength weapons, and resistance to bludgeoning, piercing, slashing damage. They can't cast or concentrate on spells while raging. His rage ends early if he is knocked unconscious or if his turn ends and he hasn't attacked a hostile creature since his last turn or taken damage since then. Chog may end his rage as a bonus action.