Board Thread:Off Topic/@comment-26397825-20150713052232/@comment-27087951-20151028012642

The thing is: 1-All Grimm are malevolent automatically.

2-All Grimm eat the bodies of their victims.

The things that could be used to make a Grimm based off a Gumiho, are already common across all Grimm. And the multi-tail part could be used to make one based off Kitsune as well.