Sources
CR
Type
Size
Alignment
Movement

Caldron Magen

Medium Construct, Unaligned

Armor Class 20
Hit Points 67 (9d8 + 27)
Speed 30 ft.
STR
18
+4
DEX
13
+1
CON
16
+3
INT
10
+0
WIS
10
+0
CHA
10
+0
Skills Perception +4
Damage Immunities acid, poison
Condition Immunities Blinded, Charmed, Deafened, Exhaustion, Frightened, Paralyzed, Petrified, Poisoned
Senses passive Perception 14
Languages understands Common plus two other languages but can't speak
Challenge 4 (1,100 XP)

Traits

Disintegration. If the magen dies, it disintegrates into dust, leaving behind anything it was wearing or carrying.

Magic Resistance. The magen has Advantage on saving throws against spells and other magical effects.

Actions

Multiattack. The magen makes two attacks, using Extended Fist or Acid Spittle in any combination.

Extended Fist. Melee Attack Roll: +6, reach 15 ft. Hit:8 (1d8 + 4) Bludgeoning damage plus 5 (1d10) Acid damage. If the target is a Medium or smaller creature, it has the Grappled condition (escape DC 14) from one of two fists.

Acid Spittle. Ranged Attack Roll: +6, range 60 ft. Hit:13 (2d8 + 4) Acid damage.

Lore

Caldron magen are powerful bodyguards that stretch their limbs and spit acid in defense of those they protect.