Illuminant Slime

Illuminant Slimes are Hardmode enemies that spawn in the Underground Hallow biome. They replace normal cave Slimes (Black and Mother Slimes) in most cases. These slimes deal a large amount of damage and have more health than their Cavern counterparts. As suggested in their names, these slimes give off a small amount of light. Illuminant Slimes also leave an after-image like the Chaos Elemental and Illuminant Bat, which appears as a long, pink trail.

Tips

 * An easy way for early Hardmode players to defeat these is to lure them into lava, e.g. by grappling to a block above a pool of lava.