Slagbound Sentinel

Immutable Form

Trait

Immutable Form Custom

The sentinel is immune to any spell or effect that would alter its form.

Magic Resistance

Trait

Saving Throws Rule

The sentinel has advantage on saving throws against spells and other magical effects.

Furnace Grate

Trait

Furnace Grate Custom

When a creature hits the sentinel with a melee attack while within 5 feet of it, that creature takes 1d6 Fire damage.

Furnace Grate. Homebrew reactive damage: attackers within 5 feet take 1d6 Fire damage per hit.

Immovable

Trait

Prone Condition

The sentinel has advantage on saving throws and ability checks against being moved or knocked prone.

Token-Bound Obedience

Trait

Token-Bound Obedience Custom

A creature presenting a Redband officer's stamped iron token within 30 feet can use an action to command the sentinel to stand down; it becomes inert for 1 hour or until attacked.

Multiattack

Action

The sentinel makes two Slam attacks and one Hammer attack.

Slam

Action

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

Hammer

Action

Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 15 (2d10+4) Bludgeoning damage.

Slag Spray

Action

Difficult Terrain Rule

The sentinel exhales molten slag in a 20-foot cone. Each creature in the cone must make a DC 15 Dexterity saving throw, taking 14 (4d6) Fire damage on a failed save, or half as much on a success. The area becomes difficult terrain until cleared.