Tyranitar @ Lefties
Normal EV spread
Naughty.
The lowest SpDef IV's possible.
-Dragon Dance
-Earthquake
-Stone Edge
-Crunch/Taunt
With 0 SpDef IV's, TTar has 318 SpDef, slighty over it's usual 29*something*, but under the max with good nature. I think this might work without being broken in OU...