Actually as far as I know, bizarro world is considered to be in all sets, and is therefor legal in all formats.
"Bizarro World (DSM-087R)
Location, 2
Bizarro World is considered to be in all sets. <p> Flip Bizarro World only if you control a Revenge Squad character. <p> Characters you control named Bizarro have all character names and identities. (See bizarroworld.com.)"
There I was able to find where I read that. It's the updated OCR.