Basically where the main character fights by using luck. He might trip or something and knock the oppnent out, but if he's unlucky there might be a power outage or something and he needs to see to use his power, etc.

Binbougami ga!

Have you read Luck Stealer

Read bambi no tegami

Mahochu! about magic..lol its shoujo though soo..
Sentou Jousai Masurawo yeah... its funny

Initially Psycho Busters MC seems to be one of these...

Transfer Student Storm Bringer
And it's spin off as well.

Tokage no Ou

Does Angel Densetsu by YAGI Norihiro count? The protagonist wins most of his fights thanks to his accurate but intuitive way of moving and an incredible amount of both good and bad luck - depending on how you look at it. By the way, he's also completely oblivious to any of the fights.

[color=#8A795D]"Stories are what death thinks he puts an end to.
He can't understand that they end in him, but they don't end with him."

• Ursula K. Le Guin, Gifts[/color]

To be savoured:

• Blood Alone by TAKANO Masayuki
• Otoyomegatari by MORI Kaoru
• Gangsta. by Kohske
• Seishun Kouryakuhon by AKIZUKI Sorata

Sachiusu for the unlucky MC. It's not fantasy and the MC doesn't have super powers, but she definitely has bad luck 🙂

[img]http://img267.imageshack.us/img267/4466/princesswallpaper2560x1.jpg[/img]

"In a world where most people would be crazy, then it would be normal to be crazy and crazy to be normal... but then again, if you were normal, then you would be crazy... isn't it crazy what a paradox a little craziness can create?"

Lucky Dog 1 Blast -MC has incredibly good luck

[img]http://24.media.tumblr.com/3b280fafb72cad0f718be64368e64ca7/tumblr_myylzmuiY41rw3pzao4_250.gif[/img]
Like educational manga? take a look at Ed U. Manga's list of manga here