Supports are in this game, but I believe it's based on simply being in the same battle rather than needing to stick next to each other to build it up. Magic has a new triangle with Anima replaced with Wind/Thunder/Fire as separate things, but I forget how their triangle works.
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http://i259.photobucket.com/albums/hh293/zukiraphaera/war-sig-1.png
http://i.imgur.com/597oi.png