1) Fayt,star ocean 3: although he may not start out as much he is incredably fast amd at later levels lethal with skills such as ethereal blast and dimension door

2) Auron,FFX: Yes auron he's slow but with his power he won't need speed as later overdrives make even the toughest enemies a peaice of cake.

3) Sephiroth,FFVII: Well with my user name this would probably be predictable but beings powerful and having speed too match he is lethal and with super nova mwahahahahaha.

4) Amarant/Albel,FFIX/star ocean 3: Yes i like him at later levels with he right equipment and abilities he is lethal his no mercy attack deals 9999 almost constantly.
or in the case of albel his vampiric flash is overpowerful taking well over 50,000Hp and 5,000MP off any who syep into the flare of it and healing albel by that amount.

(yay.....this is the team i would like too see i couldn't decide weather to have albel or amarant so i put down wither or...