Water is the 75% of muscle made of water. Earth is the other 25% made from elements from the earth. Wind is the breath that powers it, and fire is the heat muscle generates.
Truly, muscle magic is the ultimate form of magic.
@JigokuShounen Yeah, he "only" chopped their necks in a potential lethal move that nocked both of them unconcious. Seriously though, considering how he blew everyone off the ring besides the two, it really felt like he was holding back, but maybe he did because it was the first round and he didn't know how strong or weak they were. One can only speculate.
He totally create muscle magic... How come no one believes him? What would you call a muscle that can nullify magic and even control a water dragon magic? The only explanation I can think of is muscle magic!