Armored Troll (Shield)

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

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

Heavy Armor. The troll is encumbered by heavy armor, and as a result gains a disadvantage to all stealth checks, as well as gaining a +3 to AC (reflected in stat block).

Shield. The troll carries a great iron shield into battle which grants it +2 to its AC (reflected in stat block)

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

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

Hammer. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 22 (4d6 + 8) Bludgeoning damage.