Wouldn't any hyper-intelligent wizard have already organised the worldwide destruction of any and all sorcerers? Why is this even an issue? Theocrafting some abstract builds and plonking them in a pocket dimension looking oddly like a white-painted room to cast spells at each other is just mental masturbation. A wizard is the archetype chessmaster villain with millennia-long planning horizons. No mortal sorcerer is even going to know that there's a wizard orchestrating world events to bring about his or her ultimate destruction. Assuming that anything with innate arcane ability survives more than a few hours after being born anyway. Cause, you know, every intelligent creature in the world already knows that such things need to be slain instantly, at risk of The Universe Itself being Utterly Destroyed.
I mean, it's not like any of the all-powerful spellcasters that have been part of D&D canon for the last 40 years have been sorcerers. Every uber-lich, demigod, or god-like spellcaster that is or was once a playable PC race is either a cleric (cause, you know, they have actual god(s) on their side) or a wizard.
So, can we get back to how a Level 20 wizard might accomplish world domination, on the vain and unrealistic assumption we can even understand how such a person might think or behave?
Cheers, Al'kelhar
Wizards learn magic. Sorcerers are magic.
Aasimar Divine Soul Sorcerer are effectively a demigod creature.
Behold, The DEMIGOD.
Stats
Race: Scourge Aasimar (+2 CHA +1 CON)
Classes: Divine Soul Sorcerer 20
Stats (Point Buy): 8 STR / 14 DEX / 15 CON / 10 INT / 10 WIS / 14 CHA
ASIs: Actor (+1 CHA), Skill Expert (Deception +1CHA), Metamagic Adept, Inspire Leadership, Tough
Final Stats: 8 STR / 14 DEX / 16 CON / 10 INT / 10 WIS / 18 CHA
Final HP: 180 + 35 (Extended 8th Aid Spell ) + 24 (Inspire Leadership)
Disguise kit, Expertise Deception, Actor feat, Magical Guidance, Extended Seeming Spell. It can be everything.
Metamagics: Quicken, Twin, Extended, Subtle, Distant, Empower
Wished Contingency condition: When I can't cast spell (Greater Restouration)
Spell Known:
Spells
1 -
2 - Aid Spell, Warding Bong
3 - Counterspell, Dispel
4 - Dimention Door
5 - Greater Restouration, Insect Plague, Summon Celestial, Seeming Spell
6 - Freezing Sphere, Heal
7 - Finger of Death, Etherealness
8 - Power Word Stun, Antimagic Field
9 - Wish
Loyal and Reliable Minions:
Extended Seeeming spell on all your allies to have a unique heavenly appearance.
In practice, this works like an Improved Mirror Image, creating multiple copies of you.
You can cast spells with impunity with
subtle spells and enemies will not be able to find out who the real caster is.
Naruto's Shadow Clone.
The Sorcerer and all of his allies can fly and we have 2 Celestials (Summon Celestial) that are summoned to attack at 600 for 144 damage each turn for 2 hours duration.
1) Twinned Simulacrum.
2) Wished Create Magen.
With, Inspire Leadership, Upcasted Aid and Tough feat.
You can create several of these constructs, because you have a lot of HP available. You can also buff them with Inspire Leadership spell.
Galven Magen is the best pick.
Flying creature
Static Discharge (Recharge 5–6).
The magen discharges a lightning bolt in a 60-foot line that is 5 feet wide. Each creature in that line must make a DC 14 Dexterity saving throw (with disadvantage if the creature is wearing armor made of metal), taking 22 (4d10) lightning damage on a failed save, or half as much damage on a successful one.
3) Extended 8th level Summon Celestial x2 (Simulacrum and the Sorcerer)
Well, 8th avenger celestial is a flying creature dealing 68 damage per turn at 600ft. 2 Creatures is insane.
4) Twin Finger of Death
It is a reliable way to expand your arm. 2x faster than any other spellcaster.
5) Simulacrum's extended Warding Bond gives you resistence against all damage
6) You have super strong long range spells, combined with Aasimar Ability. You can deals incredible damage. Long range spell combined with flight spell is insane.
All doubled with Simulacrum
Empowered Distant Freezing Sphere can deal 125 damage
Combined with Summon Celestial, It can deals more than 260 damage at 600ft.
7) Power Word Stun, Antimagic Field, Wish
all situational spells.
If they were having difficulties against a level 11 Sorcerer, imagine it against the DEMIGOD.