Armed Sentinel (5e Creature)
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Large construct, unaligned
Damage Immunities poison
Bound. The armed sentinel is magically bound to an amulet. As long as the sentinel and its amulet are on the same plane of existence, the amulet's wearer can telepathically call the sentinel to travel to it, and the sentinel knows the distance and direction to the amulet. If the sentinel is within 60 feet of the amulet's wearer, half of any damage the wearer takes (rounded up) is transferred to the sentinel.
Horn of Battle. The armed sentinel possesses the ability to enhance the voice of its amulet's wearer, allowing it to become audible up to 600 feet away.
Regeneration. The armed sentinel regains 10 hit points at the start of its turn if it has at least 1 hit point.
Spell Storing. A spellcaster who wears the armed sentinel's amulet can cause the sentinel to store one spell of 4th level or lower. To do so, the wearer must cast the spell on the sentinel. The spell has no effect but is stored within the sentinel. When commanded to do so by the wearer or when a situation arises that was predefined by the spellcaster, the sentinel casts the stored spell with any parameters set by the original caster, requiring no components. When the spell is cast or a new spell is stored, any previously stored spell is lost.
Multiattack. The sentinel makes two melee attacks: one with its fist and one with its greatsword, or two with its greatsword.
Fist. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.
Greatsword. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 18 (4d6 + 4) slashing damage.
Retaliate. When a creature makes an attack against the wearer of the sentinel's amulet, the sentinel can make an extra melee attack against the wearer's attacker if the sentinel is within 5 feet of the attacker.
The armed sentinels are similar to the shield guardians both in appearance and usage, but the difference is that where shield guardians are to protect spellcasters, the armed sentinels are used as soldiers, serving under the banners of kings, nobles, and warlords, fighting to their last metaphorical breath.