The Consolidated Lists published by WotC on the (now mostly defunct) archive site contained among other things a complete list of all published (by WotC) feats with names, sources, and short descriptions. As such, the lists do not contain any Dragon, Dungeon, or official site feats. Despite that, the list contains 3276 results (including duplicates from multiple sources). A brief keyword search of " rage" turns up every instance of both rage and courage along with a few other words. (Note that the inclusion of the space in the words is deliberate. Have you reviewed Thundering rage (EL), Wolverine's rage (CD), Righteous wrath (BE), Poltergeist rage (Gh), Mighty rage (EL), Terrifying rage (DMG & EL), and especially Stone rage (RS) which is explicitly defensive in nature? --- (These lists can also found via the well known wayback machine... and in my 3.x official sites archive, which is freely available to all online, but which might not be appropriate to link here?)