Frostvale Security Construct

Security Construct (CR 4)

Medium construct, neutral

Armor Class 15 (natural armor)
Hit Points 60 (8d8 + 24)
Speed 30 ft.

STR 16 (+3)
DEX 12 (+1)
CON 16 (+3)
INT 4 (-3)
WIS 10 (+0)
CHA 1 (-5)

Saving Throws Strength +5, Constitution +5
Skills Perception +2
Damage Resistances bludgeoning, piercing, and slashing from non magical attacks
Damage Immunities poison, psychic
Condition Immunities charmed, frightened, paralysed, poisoned, stunned
Senses darkvision 60 ft., passive Perception 12
Languages understands Common but cannot speak
Challenge 4 (1,100 XP)

TRAITS

Magic Resistance. The security construct has advantage on saving throws against spells and other magical effects.

Immutable Form. The construct is immune to any spell or effect that would alter its form.

Arcane Deflector. When the security construct is hit by a magic attack, it can use its reaction to reduce the damage by half.

ACTIONS

Multiattack. The security construct makes two heavy slam attacks.

Heavy Slam.
Melee Weapon Attack: +5 to hit, reach 5 ft., one target.
Hit: 13 (2d6 + 3) bludgeoning damage.

Arcane Surge (Recharge 5-6). The security construct can release a burst of charged magical energy. Each creature within 15 feet of the construct must make a DC 13 Constitution saving throw. On a failed save, the creature takes 10 (2d8) force damage; on a successful save, the creature takes half as much damage.