Maxius is basically poverty Awoken Thor in use as a sub. Potentially handy if you need the burst and don't have the aforementioned, but keep in mind even at max Maxius is still pretty darn slow(although since he's a burst-enabler you shouldn't need him more than once or twice ideally anyway)
The light resists(or was his water?) could prove handy to have around too. His stats are a LITTLE lower than one would like but they're not ENTIRELY unforgivable. He's just so....MEDIOCRE, is his biggest issue. Useful bits here and there but nothing spectacular. (All of the other bicolor enhancers can have the same said of them, with the other silvers being similarly "eh" at most. Heck, a couple of the golds are also pretty lacking. I'm looking at you, Balancile/Polaris mainly. Asmo, Saiga Another, and Kiriko are the real prizes, especially that last one, though they're a bit on the outdated side of powercreep unfortunately. Sakuya/Athena/Sonia Another are "interesting" but not enough of improvements and far too rare to be worth hunting for IMO, and Saku's DEFINITELY not worth 300k MP.)