Armor Class 16
Hit Points 230 (20d12 + 100)
Speed 50 ft., fly 25 ft., swim 50 ft.
Saving Throws STR +14, CON +10, WIS +10, CHA +9
Skills Arcana +8, Athletics +14, History +8, Perception +10
Damage Resistances cold
Damage Immunities lightning, thunder
Senses Darkvision 120 ft., Truesight 30 ft., passive Perception 20
Languages Common, Giant
Challenge 13
Amphibious. The giant can breathe air and water.
Multiattack. The giant makes two attacks, using Storm Sword or Thunderbolt in any combination.
Storm Sword. m +14, reach 10 ft. Hit: 23 (4d6 + 9) Slashing damage plus 13 (3d8) Lightning damage.
Thunderbolt. r +14, range 500 ft. Hit: 22 (2d12 + 9) Lightning damage, and the target has the Blinded and Deafened conditions until the start of the giant's next turn.
Lightning Storm (Recharge 5–6). dex DC 18, each creature in a 10-foot-radius, 40-foot-high Cylinder originating from a point the giant can see within 500 feet. 55 (10d10) Lightning damage. Half damage.
Monster Manual (2024), p. 302