Weapon concept: Apocalyptic scythe
http://www.thesixthaxis.com/wp-content/uploads/2009/12/scythe1.jpg
80 ad 10% cd 5% lifesteal
https://pbs.twimg.com/media/CKtb1L2WIAABz6j.png:large
passive: gather the souls of those killed. 50 souls allows you to exchange them to summon the reaper. The reaper is a Boss minion, obviously his strength would vary for balance of the game. Can be commanded on who to attack, but only once and will follow that person till either they die or he is killed, should he kill the target 25 souls are refunded and he vanished.