Glyph of Resonating Power (Req. lvl. 15) - Reduces the rage cost of your Thunder Clap ability by 5.
Been thinking about this one alot. Much depends on how rage generation shakes out but -5 rage is a significant savings. Obviously, going toe to toe with a raid boss isn't generally going to make this attractive but running 5 mans, grinding, and even 10 mans...this is pretty nice. That rage savings will mean quite a few more TCs and mor threat as yo'll have more rage.
your hat may be nice, but I have the little white tank top that says Legendary right across my boobs. I win. (or more correctly, H wins)