Serious and dedicated Alliance raid guild on the US Server:Kirin Tor US that is composed of seasoned and highly-skilled players. Seraphic was the first guild on Kirin Tor to take down all end-game and world bosses outside of Ahn'Qiraj, including Nefarian (which was done within the first 6 months of the server's existence). Seraphic has completed the questline to open the Gates of Ahn'Qiraj for the Kirin Tor server on May 14th, 2006.
As a high-end guild, their actions are often scrutinized by the player base, especially their conduct in PvP Battlegrounds.
As of September 9th, it seems that Seraphic has suffered a split, as seen on the Kirin Tor forums, and has subsequently reformed and split again. It's uncertain to the general population of the server exactly what is happening with this guild.
Some post-split members have reformed as the Fallen Angels guild.