Character Concept: Exploder Class

This kind of class (inspired by Tiny Tina) would allow the player to do an either all torgue class or grenades. The main skill would be 'Living Time bomb' which would make it so anyone who hit you would set off an explosion around the player. The player will also explode when the skill begins and ends. Duration-20 sec
Cool Down-40 sec
Skill Trees might include- Dare Devil, Final Countdown, and Life Bomb
I haven't completely figured it all out yet but I'm open for ideas