What happens if I resurrect for example Drogon With blood magic ritual?

Because each effect of Blood magic ritual is ended by a dot, so it means each effect is separated, isn't it?

So the 3 effects are:

-Resurection.

-Attachment.

-Kill attached character is blood magic ritual leaves play.

So on Drogon, it would:

-Resurect it.

-Try to attach to Drogon and fail because of Drogon "no attachment".

-Don't kill Drogon because it never was attached to Drogon.

Am I right?

Blood Magic Ritual has been errata'd. So, this is no longer possible. If BMR fails to attach, the character resurrected would die again.

However, you can save the character from being killed, with Strong Belwas, for instance.