Faote, being slow hitting, would just try to screw you over if you make the slightest misstep. His main weapon would be a scythe which deals loads of damage, but it's really slow. Even aerial attacks are a pain with it. Thing is though, if you try to block against a scythe attack, your block is broken. You're better off just avoiding him (which would be really easy to do.). Other than this, his health is actually quite low compared to other fighters, even if he's a hard hitting slow fighter. However, his style of fighting more than makes up for this.
So, three specials for Faote? Kay. Faote's first special would be portal creation. Basically, he would spawn semi-random portals across the screen (They would scroll with the screen too) and whenever Faote attacked one portal, all other portals would use the same attack. So if Faote slashed a portal with his scythe, all the other portals would have a scythe slashing through them.
Faote's next special would be chargeable energy beams. At it's lowest level, a quick, small beam can be fired in quick succession. Thing is, the beam does very little damage. However, to make up for it, the beam can also go through portals, spamming the screen with them. The opponent can't be flinched through these beams, but if they block, they're leaving themselves wide open for a slash from Faote's scythe. The second level of the beam is a bigger, slower form of it. It flinches the opponent, and is portal affected. Thing is, it takes Faote 2 seconds to charge to the second level. So while Faote is charging this, the opponent has a good chance to stop the Alchemist from filling the screen with it. The final charge takes 5 seconds, and doesn't come from Faote himself. Instead, Faote opens a massive portal behind him and literally fills the entire screen with beam energy. It's blockable (Durr.), but it's not portal affected (It actually decimates any portals it comes in contact with!)
Faote's final special would be a God circle enveloping the entire stage for about ten seconds. Rather than going the quick route in the RP (insta death!), It rather increases Faote's speed and fighting ability. His scythe attacks are quicker, and his beams take half as long to charge up. If a Faote user was lucky, they could get off a few portals and spam the medium beam through them, or get off that massive beam behind him much more quickly than before.
Costumes? His would be the False Heaven Admin uniform (A black robe with glowing blue symbols littered across it), A black trench coat with no other real defining features, and bone-like armor with mouths opening and closing everywhere (sinner's armor from Hell tournament VS. Koty.)
Yeah, Faote may look overpowered, but keep in mind that he isn't anything without his portals. Otherwise, how else would he be able to pull off other attacks like his beams with so little health?