Not a fan of the rat and bad. Scorpion is ok, although perhaps also an obvious bad guy<br/><br/>Couple more ideas (some also obvious):<br/>- Devil's luck<br/>- Minotaur's fury<br/>- Triple Raven<br/>- Witch Coven (girls only)<br/>- Valkyri's pride (girls only)<br/>- Fenrir's Pack<br/>- Pale Moon<br/>- Dragon's Hoard (arogant, prestige guild for students from rich families)