Boom. blam. blaow. bzzzzzzzzzzrzadada. We need to kill with something else.
Thus
This is a grenade. thrown normally.
But.
When it explodes, it creates a mass effect feild that pins you in the air for a while, then slams you down with the force of 3 atmospheres. Messy.
HOW IT WORKS:
Well, yeah. it catapults you up, keeps you there for a bit floating around, them you get slammed down at max velocity, doing away with you quite messily.
This could be intresting in knife DMs.