Thunder's skill set might seem rather mundane in comparison to his fellow magic-users, at least at first. When not massacring gang members in the streets of China Town, he mainly gives guided tours of the Wing Kong Import-Export Trading Company, interrogates interlopers and attends to his master. But Thunder possesses one more notable skill: When the going gets tough, he inflates his body and explodes in a burst of green goo and chunks.
At first this might seem nonsensical, but it all crystallizes when we look to natural world biology. Read "Monster of the Week: Thunder of the Three Storms."