Macro - Murder of Crows missing

I’m not sure if this is a bug or a lack of understanding on my part. I tried to make a macro that casts Murder of Crows and it isn’t in the spell list. I switched to using Blistering Radiance and it seems to work fine.

If enemy(All) has (buff) Invisible cast Murder of Crows.

Oh, thanks. I did not know that. That is probably the problem. I definitely have not purchased the inscription.