16 (scale mail)
200 (20d12+100)
walk 50 ft., swim 50 ft.
Str +14, Con +10, Wis +9, Cha +9
Arcana +8, Athletics +14, History +8, Perception +9
cold
lightning, thunder
Common, Giant
13
Serissa can breathe air and water.
Serissa's innate spellcasting ability is Charisma (spell save DC 17). It can innately cast the following spells, requiring no material components: • At will: detect magic, feather fall, levitate, light • 3/Day each: control weather, water breathing
Serissa makes two maul attacks.
Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 30 (6d6 + 9) bludgeoning damage.
Ranged Weapon Attack: +14 to hit, range 60/240 ft., one target. Hit: 35 (4d12 + 9) bludgeoning damage.
Serissa hurls a magical lightning bolt at a point it can see within 500 feet of it. Each creature within 10 feet of that point must make a DC 17 Dexterity saving throw, taking 54 (12d8) lightning damage on a failed save, or half as much damage on a successful one.
Some adult storm giants can channel thunderous power through their bodies and release it with a deafening stomp. This ability is represented by the following action option. Thunderous Stomp (Recharge 6). The storm giant stomps the ground, triggering a thunderclap. All other creatures within 15 feet of Serissa must succeed on a DC 17 Constitution saving throw or take 33 (6d10) thunder damage and be deafened until the start of Serissa's next turn. On a successful save, a creature takes half as much damage and isn't deafened. The thunderclap can be heard out to a range of 1,200 feet.