Scythe

A scythe constructed for fighting (as opposed to a standard harvesting scythe) has had its blade transformed so that it extends upright from the staff, and is used much like a halberd.

A scythe can be used to make trip attacks. If you are tripped during your own trip attempt, you can drop the scythe to avoid being tripped.

Weapon Feature(s): trip

Two-Handed Melee Weapons (Martial)
Martial Weapons	Cost	Damage (S)	Damage (M)	Critical	Range Increment	Weight	Type	Special
Scythe	18 gp	1d6	2d4	×4	—	10 lb.	Piercing or slashing	trip

Source: Core Rulebook