ugh 
 Quite possibly the dumbest decision in the entire show

 

Name: Death's Scythe
Origin: Supernatural
Type: Scythe (duh)
Powers and Abilities: A part of death, can kill anything in the verse (possibly sans Amara) even Death itself.
Destructive Capacity: Conceptual weapon, capable of killing even Universe level characters
Wielder(s): DeathDean, Alastair
Material or Element: Unknown
Needed Prerequisite for Use: None
Notable Attacks/Techniques or Alternate Forms:

Other: It was destroyed when Death died.
Also it used to be smaller, but retcons happened.