Soul Reaper

From MTG Salvation Wiki

The Soul Reaper was a weapon forged by Kamahl and The First using their old and useless staff and sickle (respectively) as a symbol of Krosa's and Cabal City's alliance against the wizard Ixidor.

It was used by Kamahl in battle, until he used it to kill Akroma, Phage and (accidentally) Zagorka, the resulting magic that created Karona destroyed it.