I like the chainspell animation the best out of every other animation this game can provide. From Weapon skills to teleport to Fire IV to monster abilities, Chainspell is the most awe-inspiring of them all. At least it is to me. The representation of time through roman numerals and imagery of those chains is simply too cool. Red mages are supposed to be "Jack of all trades" job, I guess they possess a little power to alter time too, huh?
It can almost make you think what a "Time Mage" job would be like, if there ever would be one for FFXI. It'd have 3x the time power of a RDM. Of course, one can only dream. I don't know much about jobs absorbed from other FF games other than 7-X.2.