Mage/Dark Wizard the nothing etfa build

uh so yesterday I made this build, any thoughts? (yes overkill mana ik LOL but I have no idea how to fix it)
https://wynnbuilder.github.io/index.html#4_06W0ol0DS0Qq0DU0DU0K40og0CD0y1i-4100y1g00000
WynnBuilder build:
> Brainwash
> Tesla
> Demon Tide
> Slayer
> Darksteel Ring
> Darksteel Ring
> Prowess
> Tenuto
> The Nothing []
the rings are optional, I just put Darksteel because the ehp looking a bit low, but p sure you can put photon/uriel or smth for movement speed or like idk dia static for damage?

 

Why use slayer
And I think you can switch Tesla to something else

 

uh for 1 cost meteor and nuce walk speed, idk if thats overkill tho, also yeah i though that too since people say tesla is bad cp but idk what to put instead, tesla just works best for thus (from what i tested atleast :/ i thunk theres a better one but idk)

 

i think slayer would be a money waste on a the nothing build, but it does its job
if you use ornate chestplate it will make you tankier and dmg wont change much
also here is a non mythic version
https://wynnbuilder.github.io/index.html#4_06W0U20DS0Ju0DU0DU00W0og0CD0r16+X0t0e1g00000
WynnBuilder build:
> Brainwash
> Ornate Shadow Garb
> Demon Tide
> Hephaestus-Forged Sabatons
> Darksteel Ring
> Darksteel Ring
> Binding Brace
> Tenuto
> The Nothing []

 

i realised that binding brace is not adding any dmg so i guess you can change it for double vison cuz its fun

 

Yea, like DeltaWave said, Slayer feels like a waste of money and there are other options to reduce spell cost.

 

yoooo ornate shadow lfg. ty both of you