hey guys, ive got in intro down with D, E and A#, but i dont know what key its in or can be in... a lil please!? thanks!
Ive never seen a song before with those chords in. However im not saying your wrong.

Usually, A song is in the key of whatever the first/last chord of the song is.

With your song - we need more information (lol like the song name) before we could tell you what key it is in.

However, with the chords D and E in i would doubt it was in the key of A#.
“Science cannot solve the ultimate mystery of nature. And that is because, in the last analysis, we ourselves are part of nature and therefore part of the mystery that we are trying to solve.”

-Max Planck

Bb major would fit perfectly over that intro, seeing as it uses the Bb and D notes. (Bb Major being made up of Bb, D and F).