Back in the OLDEN days...
... Because... Yeah, I didn't see its importance... And stuff... Yeah...Why DIDN'T you read Big Brother?
I'll see about a new riddle later.
Second is Salamence.
Third is Flygon. Same reasons as for Vibrava, but more related to the answer to number 1 (Altaria).
Fourth is Shelgon.
Fifth is Kingdra.
All of these are owned by Elite Four Drake.