Lightning based blaster build?

[Unoriginal]

Yes they do, actually. Significantly so.

Scribe Wizard's perks beside the damage type permutation make the Scribe Wizard a better Lighnting Blaster than Draconic Sorcerer?

Surprising claim.

EDIT: I just checked, the Scribe Wizard cannot have lightning-damage-substitution spells using a 9th level spell slot.

And they can only have lightning substitution spells using a 8th level spell slot if the DM allows Illusory Dragon as an "all damage type" spell in the spellbook, even if the text is explicit you choose the dragon's damage type on casting.

So that's between one and two whole spell levels the Sorcerer Blaster has access to, while the Scribe Wizard Blaster hasn't.