Help me find this anime

[SuperKamiGuru]

New guy here, and I've been trying to find this anime for ages, but I can't remember the title. I read about it, but can't for the life of me remember.

There are two brothers on a team to conquer a dungeon. The younger brother is kicked off, but forms his own team and sets off to the dungeon.

Any ideas pointing in the right direction would be greatly appreciated.

[BronyBradyBuddyKiller]

This was all I could find and I doubt it's right:
http://en.wikipedia.org/wiki/List_of_Magi:_The_Labyrinth_of_Magic_characters

[Gensan Geek]

tower of druaga.

[Albear]

This is off topic, but are you a youtuber?