Now coming in many varieties such as fire, ice, poison, etc. They were the easiest for wizards to tamper with, being the simplest beings, and have become far more populous than in previous times, definitely migrating from living only deep underground in the darkness. More appear when you kill them, so watch out.
Pink Elemental Slimes are exactly like regular slimes, except they have been imbued with some type of magical property. This property is yet to be discovered or confirmed.