In Elden Ring: Nightreign Reapers are a type of weapons that deal slashing damage, have relatively good reach, come with innate Bleed buildup, and can inflict damage through enemies that have their shields raised. Their wide slashing arcs are perfect for hitting multiple enemies. These weapons can be devastating with the right build, especially if it focuses on inflicting Blood Loss.
NightreignReapers - Nightreign Wiki

Grave Scythe
Reaper • Lvl Required 3
Greatscythe comprised of a large blade affixed to a crooked stick. Weapon wielded by the aged grave keepers who tend the forgotten graveyards throughout the Lands Between. This weapon is said to have served as a charm against evil spirits in times of old.

Halo Scythe
Reaper • Lvl Required 7
Weapon Skill: Miquella's Ring Of Light
Summon Miquella's shining halo and fire it forwards. Can be fired in rapid succession.
War scythe of the Cleanrot Knights who fought alongside Malenia, Blade of Miquella. This was the weapon of commanders in Malenia's army, and the half-halo blade deals holy damage.

Scythe
Reaper • Lvl Required 1
Large scythe featuring a long, slender blade. Designed to reap, this weapon is capable of rapidly inflicting blood loss while also slipping through an enemy's guard. In the hands of a highly dexterous wielder it is capable of striking fear into the heart of any foe.

Winged Scythe
Reaper • Lvl Required 7
Weapon Skill: Angel's Wings
Jump and imbue the wing-blade of the armament with light, then deliver a slashing attack on the enemy. The white wings impede recovery actions using a flask of tears.
Sacred scythe resembling a pair of white wings. Deals holy damage. According to pagan belief, white-winged maidens are said to be Death's gentle envoys.