This guide offers information on where to find and collect the coveted Tier 5 Raid set of armor. The Tier 5 raid set is very similar to the Tier 4 raid set in that it is gained by collecting "tokens" and turning them in to vendors in exchange for the armor pieces. The "tokens" are really just statless pieces of armor. You can trade them in for the armor set pieces from the Aldor and Scryer vendors in Shattrath City

You can check it all out here: Raid Tier 5 Set Information.