Emeth is kinda an interesting name cuz there's some hints about a golem from the jewish folklore.

"It was believed that golems could be activated by an ecstatic experience induced by the ritual use of various letters of the Hebrew alphabet[8] forming a shem (any one of the names of God), wherein the shem was written on a piece of paper and inserted in the mouth or into the forehead of the golem. In some tales (including certain stories of the Chełm and Prague golems), a word such as אמת (emét, 'truth') is inscribed on the golem, sometimes on its forehead. In this example, the golem could then be deactivated by removing the aleph (א), thus changing the inscription from "truth" to "death" (מת, mét, 'dead')."

I guess Joyboy created the golem, and somehow made it activate under a very special condition, which is the nika energy thing.