Mindflayer

Mindflares, also known as Drakan and several other names, are recurring enemies. Their signature attack is 'Mind Blast', which tends to cause various status effects and occasionally damage.

Final Fantasy I
Called Sorcerers, and Squidrakan in Dawn of Souls.

Final Fantasy IV
Localized as Mage. Can be acquired as a summon for Rydia.

Final Fantasy V
Mindflare/Mindflayer. Blue Mages can learn Mind Blast from them

Final Fantasy IX
Known as Drakan. Quina can learn Vanish from them.

Final Fantasy XI
Known as Soul Flayers.

Final Fantasy Tactics
Three versions appear: Pisco Demons, Squidlarkin, and Mindflares.