Nova Challenge

[Torpin]

11th eldritch knight 3rd assassin rouge 2 paladin 4th wizard. Bonus action cast shadow blade as a 3rd level spell. Do 6attacks for 3d8 get 2 smites as 4th 2 at 3rd and 2 at second and since it's surprised you double all this for a total of 84d8 +4d6 damage

[LudicSavant]

11th eldritch knight 3rd assassin rouge 2 paladin 4th wizard. Bonus action cast shadow blade as a 3rd level spell. Do 6attacks for 3d8 get 2 smites as 4th 2 at 3rd and 2 at second and since it's surprised you double all this for a total of 84d8 +4d6 damage

What's the challenge supposed to be, here?

[Silpharon]

I'm assuming this is first round of combat no help and no prior buffs going in.

Artillerist 11/Wizard 7/Fighter 2

10 Scorching Ray charges in your spell storing item (SSI)

Action 1: Elemental bane fire on the bad guy
Action 2: Tiny Servant at 7th level for 9 little buddies
Free action: Drop your SSI by your buddies
Bonus action: Command all the buddies to take the SSI and use it on the bad guy

Before your next turn, 9 scorching rays would be cast for 9*4*2d6=72d6 fire damage without resistance if everything hit.

Not as much as your smite trick, but I only lost two spell slots, and didn't need to surprise my victim. :)

[Silpharon]

Blue Draconic Sorcerer 9/Divination Wizard 2/Tempest Cleric 6/Fighter 2/Hexblade 1

Assuming you have two Portent 19 or 20 rolls. You'll have 2 Destructive Wrath charges to use.

Bonus action: Hexblade Curse
Action: Witch Bolt lvl 9 maxed and crit = 216 lightning damage +6 curse damage +5 elemental affinity damage
Action: Witch Bolt lvl 8 maxed and crit = 196 lightning damage +6 curse damage +5 elemental affinity

No rolls, no saves, no chances. Just 430 flat lightning damage. You leave your enemy as smoldering ash. Use subtle spell metamagic on both casts to beat silence and counterspell. You point a stick at them, and boom. This beats the OPs 392 avg damage if everything hit.

If you've got the Amulet of the Devout, you can reduce Cleric to 2 and up Sorcerer to 13 to be more SAD on Charisma. You would need at least 13 in Cha, Int, Wis, and Dex to multiclass enough for this.

[Torpin]

13th wizard blade singer 2 paladin 3 rogue 2 fighter I think can do 98d8
7th shadow blade 5d8 base damage per hit. 4 hits get 3 smites for 6d8 one for 5d8 then blade singers when they multiattack get to cast a cantrip as an attack. So you get another 6d8 from booming blade and they all crit so 98d8+ 4d6