Colossus
Gargantuan Construct (titan), UnalignedAC 23
HP 553 (27d20 + 270)
Speed 60 ft.
STR
30 (+10)
Save +10
DEX
11 (+0)
Save +8
CON
30 (+10)
Save +10
INT
3 (-4)
Save -4
WIS
11 (+0)
Save +8
CHA
8 (-1)
Save -1
Saving Throws DEX +8, WIS +8
Resistances Necrotic; Radiant
Immunities Poison; Psychic
Condition Immunities Charmed, Exhaustion, Frightened, Paralyzed, Petrified, Poisoned, Stunned, Unconscious
Senses Truesight 300 ft., Passive Perception 10
Languages understands Celestial and Common but can't speak
CR 25
Traits
Immutable Form. The colossus can't shape-shift.
Legendary Resistance (4/Day). If the colossus fails a saving throw, it can choose to succeed instead.
Magic Resistance. The colossus has Advantage on saving throws against spells and other magical effects.
Siege Monster. The colossus deals double damage to objects and structures.
Actions
Multiattack. The colossus makes three attacks, using Slam or Radiant Ray in any combination.
Slam. Melee Attack Roll: +18, reach 20 ft. Hit: 32 (4d10 + 10) Bludgeoning damage, and the colossus pushes the target up to 20 feet straight away from itself.
Radiant Ray. Ranged Attack Roll: +18, range 300 ft. Hit: 22 (4d10) Radiant damage. If the target is a Large or smaller creature, it has the Prone condition.
Divine Beam (Recharge 5+). dex 26, each creature in a 300-foot-long, 10-foot-wide Line. Failure: 65 (10d12) Radiant damage. Success: Half damage. Failure or Success: A creature reduced to 0 Hit Points by this beam disintegrates into dust, leaving behind any magic items it was wearing or carrying.
Legendary Actions
Smite. The colossus makes one Radiant Ray attack.
Stomp. The colossus moves up to half its Speed without provoking Opportunity Attacks, and it can make one Slam attack at any point during that move.