Sources
CR
Type
Size
Alignment
Movement

Hundred-Handed One

Huge Giant, Lawful Neutral

Armor Class 15 (natural armor)
Hit Points 243 (18d12 + 126)
Speed 40 ft.
STR
26
+8
DEX
15
+2
CON
25
+7
INT
14
+2
WIS
16
+3
CHA
16
+3
Saving Throws CON +12, WIS +8
Skills Intimidation +8, Perception +8
Condition Immunities Frightened
Senses darkvision 120 ft., passive Perception 18
Languages Giant
Challenge 15 (13,000 XP)

Traits

Reactive. The giant can take one reaction on every turn in a combat.

Vigilant. The giant can't be surprised.

Actions

Multiattack. The giant makes four longsword attacks or two rock attacks.

Longsword. Melee Weapon Attack: +13 to hit, reach 15 ft., one target. Hit:21 (3d8 + 8) slashing damage.

Rock. Ranged Weapon Attack: +13 to hit, range 60/240 ft., one target. Hit:30 (4d10 + 8) bludgeoning damage. If the target is a creature, it must succeed on a DC 21 Strength saving throw or be knocked prone.

Reactions

Deflect Attack. The giant adds 5 to its AC against one weapon attack that would hit it. To do so, the giant must see the attacker and be wielding a melee weapon.

Lore

Extra pairs of arms magically orbit the bodies of the titanic, nearly forgotten artisans known as hundred-handed ones. These giants often dwell in remote mountains and seaside cliffs, where they carve their memories into the ancient stone, covering their territories with intricate reliefs and massive statues of bygone ages. Some linger near ancient temples and palaces, ruins they once raised to the gods or archons of old.