Please translate this (english to latin)

-Destiny child
Puer fati

-Last hope
Spes ultima

-Eternal destiny
Fatum aeternum

-Mirage fate
Fatum falsum

-Forgoten child
Puer oblitus

-Angel and demon
Angelus et daemonium

-High angel
Angelus altus

-Disaster
Clades

-The god
Deus

-soft music
musica lenis

-betray the world
mundum prodere

-world enemy
mundum inimicus

-tear of world
lacrima mundi

-light and dark
lux et tenebrae

-sword and shield
gladius et scutum

-the heart that darker than darkness
cor obscurior quam tenbrae

-black
niger

-the heart that shine in the darkness
cor quod in tenbris lucet

-the under
???

-From the under
-from the world

-From the under
"Under" is not a noun.
"From under" = "De sub"

-from the world
de mundo

Thank you very much.

Thank you very much.
And thank you for the correction.

By the way, why "from the middle" isn't "de medio" instead it's "a medio"

"From" is usually "a" or "ab" when it means "away from", "de" when it means
"down from" and "e" or "ex" when it means "out from". That is how they are
most commonly used, but you may find "de" used where you'd have expected
one of the others.

So is it ok, if i use de medio?

Yes.

Could you help me just a little bit more...
How to translate

-black magic
from the hell

(just a guess if black magic = niger magica ?)

Very close, Deck.
black magic
magica nigra
"Niger" is masculine; "nigra" is feminine to agree with "magica".
In Latin, the adjective most often, but not always, follows the noun.

From hell
De inferno

I see...
Thank you so much

You're welcome, Deck.