Well, it is a Red MAGE. The video and slide after explained all that needed to be explained for now really. We saw a spell chain and the result with some oGCDs tossed in for positioning. Buff for chainspell, a cast, oGCD gap closer, melee skill, oGCD backdash, then a burst skill using the chainspell stacks or however the measure it. It's not just a casting Job with 1 melee skill because you saw 2 spells and 1 weapon skill. It was just an example of the job's system.