I'd definately have to have the ability to pick up and throw stuff but when I throw it, it must be lit like a cocktail and explode similarly. It can be a dud though occasionally. That would be my primary. If I haven't picked anything up, I throw Ghôl heads. I also need a short range so the dagger attack sounds good. My special attacks could be similar to Balin's except without the dwarven paratrooper call in. So I start with 3 satchel strike grenades then when they run out, I lay normal satchels which cost mana.
So my attacks would be something like the following:
Pick Up/Throw Proj. (Primary)
Dagger Stab (Primary Short Range)
Satchel Strike (Special [ammo, x3])
Satchel Charge (Special [mana, once sat strike run out])
How does that sound?