JROMEEZY

I was, indeed referring to Gen 5, but in Gen 5 which pokemon has been banned? Is the announcement "Smogons OU Ban List By Phillip" is what pokemon have been banned? And does that mean I can use Latios/as in OU?

No, the use of Ubers of any kind is prohibited in OU. If you're talking about 5th Gen though, neither Latios nor Latias has been banned yet.