Is there a Fallen Angel Template?

[The Viscount]

Close but no cigar. Changes type to Aberration.

I'll be honest here and come clean. I was looking for a way to bind a Planetar via Planar Binding + Infernal Bargainer, but Infernal Bargainer only works with evil creatures, so I needed an evil Planetar to bind to craft scrolls of higher level spells I don't have access to yet but it seems this is an impossible task so I think I'm a give up @_@.

Interrogating random outsiders until they reveal the name of a rare unique fallen planetar seems like the only recourse I have. :(

Ah well if those are the restrictions we can get there with template stacking. First apply Dark which changes the alignment in a rather vague "one step away from normal, rarely good" to make our angel neutral, and then half fiend to get us to evil.