List of vortices
Vortices are odd phenomena that occur in certain elementally charged places or created by spells. For the most part, they aren't overtly hostile; many of them are permanently confused and will float aimlessly about, only dealing damage when they happen to crash into something. They are all nonliving, however, and are all immune to magical effects as well as generally highly resistant to elemental magic.
List of vortices
v Insubstantial wisp - Thin clouds of gases that travel in packs and swarm passersby. They blink often and occasionally discharge electricity.
v Fire vortex - Swirling clouds of flame found in volcanic areas or created with extremely powerful Fire Magic.
v Spatial vortex - A wandering tear in the fabric of space that deals heavy distortion damage to anything it bumps into.
v Spatial maelstrom - A cognizant (and hungry) hole in creation. It seeks to dissolve all matter into raging storms of unreality.
v Twister - A localized windstorm that sweeps away anything unfortunate enough to be caught in its path.
Retired vortices
v Vapour - Invisible wads of mist that occasionally discharged Lightning Bolts in random directions.
History
Vapours were removed in 0.15.