based on D&D 5th Edition
Rune Giant
Gargantuan  Giant , Unaligned

Armor Class 22  (natural)
Hit Points 429  (22d20+198)
Speed 35 ft. , swim 17 ft.



STR DEX CON INT WIS CHA
30  (+10) 11  (0) 28  (+9) 14  (+2) 23  (+6) 18  (+4)
Saving Throws Str +11
Damage Immunities Fire, Frost, Lightning
Senses passive Perception 19
Languages Common, Giant, Terran
Challenge 17  (0 XP)
Innate Spellcasting. At will: air walk, (1/day) charm person, suggestion. (3/day) dominate person, charm monster. .
Command Giant. Saving throw disadvantage when using charm or compulsion against Giants..
Runes. Runes flash with light DC 24 charisma or be blinded..
Actions
Multiattack. Makes two slam attacks or one sword attack
Slam. Melee Weapon Attack: +16 to hit, reach 20 ft., one target. Hit: 22 (2d6+15) bludgeoning damage.
Sword. Melee Weapon Attack: +17 to hit, reach 20 ft., one target. Hit: 36 (4d6+22) slashing damage.
Spark Shower. (Recharge 6) DC 15 constitution check for half damage., for 70 (10d6 + 10d6) fire and lightning damage in 30 ft. Cone
Charm Person. 3 uses Attempt to charm a creature within sight in range. Target does not attack caster.DC 23 Charisma save
Suggestion. 3 uses Attempt to charm a creature within sight in range. Target does not attack caster and must perform suggested action. DC 23 Intelligence save
Dominate Person. 1 uses Attempt to control a titan within sight in range. Titan is controlled by caster. Saves at end of turn or when it takes damage.DC 23 Wisdom save
Charm Monster. 1 uses Attempt to charm a humanoid within sight in range. Target does not attack caster.DC 23 Charisma save