Reaper

The Reaper is a Hardmode enemy that spawns during a Solar Eclipse. It will appear on the after all Mechanical Bosses have been defeated, or on the  during any solar eclipse. It will rarely drop the Death Sickle.

They are functionally similar to Wraiths, but with higher stats. They move significantly faster than Wraiths, and with the higher spawn rate of the Solar Eclipse, often attack from multiple directions at once.

Fortunately, they are quite vulnerable to knockback, and like many creatures that pass through blocks, weapons that normally don't harm enemies through blocks, like most melee weapons, will damage them.

Reapers are also immune to Lava.

Tips

 * Standing on a platform several tiles above the ground or use of wings or Rocket Boots allows players to shoot down upon them with impunity if they are going to be surrounded.
 * The Static Hook, obtainable from the Steampunker, provides for safe means of combating Reapers by simply remaining stationary above the ground in an open area and attacking downwards. Note that this strategy opens the player to attack from flying vampires, and leaves them stationary for an eyezor to attack.

Trivia

 * They follow the same AI as Wraiths.
 * Similar to Eyezor, the Reaper does not allude to a single horror movie, likely being a reference to The Grim Reaper.
 * The sound they make might be a reference to the "Legacy of Kain" series, when Raziel swings the spectral Soul Reaver.

History
Faucheur