Muigin

Muigin is a level 51 NPC located at Marshal's Refuge in the contested territory of Un'Goro Crater.

Background
Muigin blames Larion, another member of the expedition, for getting them lost. Now he wants to have a little payback. Muigin used to be be found on the west side of Marshal's Refuge.

Cataclysm
Muigin can be found standing at the top of one of the two guard towers in Marshal's Stand, across from Larion, who is in the other. The guard towers are inaccessible except by flying mount, and both Muigin and Larion will no longer interact with players. His bloodpetal sprouts however, have run wild and multiplied throughout the northeast corner of Un'Goro Crater.

Trivia

 * Taking the names of Muigin and his partner on the other side of the Refuge named Larion, remove the "n" at end of each and switch the beginning letters, you get Mario and Luigi. They are even dressed in red and green and carry large hammers.