Huge Giant (Wizard), any alignment
Armor Class 19 (natural armor)
Hit Points 276 (24d12 + 120)
Speed 40 ft.
STR
23 (+6)
DEX
15 (+2)
CON
20 (+5)
INT
19 (+4)
WIS
14 (+2)
CHA
10 (+0)
Saving Throws Dex +7, Con +10, Int +9, Wis +7
Skills Athletics +16, History +9, Perception +7
Senses darkvision 120 ft., passive Perception 17
Languages Common, Giant, Terran
Challenge 16 (15000 XP)
Proficiency Bonus +5
Legendary Resistance (3/Day).
Stone Rune.
Actions
Multiattack.
Prism Staff.
Exploding Geode.
Prismatic Rays (Requires Stone Rune).