Alright lets get on with my character:

Name: Damon (after my son)
Weapon: Katana's
Armor: Tekkou
Legendary Weapon: Celestial Fury (empowered by non elemental attack)
Break Damage Limit
First Strike
Evade & Counter
Triple Overdrive

Initial stats: comparable to Auron's. Grid includes Strength, Defence, Mg Def, Agility, and Accuracy spheres in bulk (+4), as well as numerous HP nodes. Not alot of empty nodes. No character can teleport into his grid.

Allows a new customization for weapons and armor: Forge
Forge allow one to combine 2 weapons or armor of the same type, as long as there are no more the 4 spots taken, for an amount of gil (for supplies). Example: Damon can forge Tidus' 2 slot sword (no abilities) with another 2 slot sword with Strength +10% and evade & counter to create a 4 slot sword that has the 2 abilities, and 2 empty slots. Handy for making 4 empty slot weapons.

Auto Skills/abilities:
Magic Eater: Every hit by a magic spell decreases its effectivness. Example, Damon gets hit with Ultima, the damage the next hit is 90%. This continues until effect is nul for 5 hits, then starts to eat magic at a 10% rate.

Double-slash: Strikes for 2 hits, double damage.

Sweeping Blade: Hits all enemies, 75% damage

Protector: Covers Rikku with given probablity (Allows Tidus to cover Yuna, and Wakka to cover Lulu)

I'll edit when I think of my overdrives.