This is as far as Ive gotten on my world destroyer.
It still needs a lot of work, but this is the basic idea.
Orichalcum Cube
Macro-Tiny Construct
Hit Dice:40,000d100 (4,081,920 hp)
Initiative: +0
Speed: Fly 480' (Perfect)
Armor Class:40,333 (+40,451 natural, -128 size), touch -118, flat-footed 40,333
Base Attack/Grapple: +30,000/+30,183
Attack: Slam +30,151 melee (1,280d10+151)
Full Attack: Slam +30,151 melee (1,280d10+151)
Space/Reach: 1,250 ft./1,250 ft.
Special Attacks: Death throes, plasma beam, reconfiguration, sentinels, traps
Special Qualities: Construct traits, damage reduction 100/ - , darkvision 60 ft., fast healing 100, immunity to magic, lowlight vision, unearthly construction
Saves: Fort +19,996, Ref +19,996, Will +19,996
Abilities: Str 322 (+151), Dex 10, Con - , Int - , Wis 10, Cha 1
Environment: Any
Organization: Army (orichalcum cube plus 500 sentinels)
Challenge Rating: ???
Treasure: -
Alignment: Always neutral
Advancement: -
Level Adjustment: -
Combat
Plasma Beam (Su): As a free action, every 1d2 rounds, the orichalcum golem can generate a beam of divine fire with an effective range of 17.5 miles. Targets struck by the beam suffer 40,000d100 (d100/Hit Dice of the orichalcum cube) divine fire damage (average ). This ability is a ranged touch effect.
Reconfiguration (Su): At the behest of it's creator, once per round, as a free action, an orichalcum cube can reconfigure it's internal structure. This ability functions similarly to a stone shape spell, except, it only affects the orichalcum cube's internal structure.
Sentinels (Su): At the behest of it's creator, once per round, as a free action, an orichalcum cube can manufacture 1 orichalcum sentinel, 2 orichalcum golems, or 4 orichalcum guardians.
Unearthly Construction (Ex): These cosmic constructs use d100s for Hit Dice. Orichalcum golems also have maximum hit points per Hit Die.