Xy'zzy


 * CR 38 on elite
 * 41 + 14 intimidate failure, 41 + 16 intimidate success = 56 or 57 intimidate DC suspected on elite (remember that you suffer huge amount of size penalty, -12 or more?)

Bees of Xoriat: "Bees of Xoriat are driving you mad, inflicting piercing damage over time, rendering you unable to concentrate or cast spells, giving you a penalty to attack rolls, and possibly pollinating you." (About 1,000 damage per minute reported)