Brain Suckler



The Brain Suckler is a Hardmode, post-Lunatic Cultist flying enemy spawned by the Nebula Pillar during the Lunar Events. It latches onto the player's head, dealing large amounts of damage at a steady rate, while also inflicting the Obstructed debuff for the remainder of time it is on the player. The debuff causes the player's screen to darken significantly, except for a small area around the player, similar to the Blackout debuff. It additionally has the effect of Bleeding, preventing all health regeneration.

Trivia

 * Brain Sucklers pay homage to the iconic Headcrab enemy from the Half-Life series, as they attack by latching onto a player's head and disrupting their brain functions. Brain Sucklers are referred to as Nebula Headcrabs sporadically in the game's code, and in their banner prior to a patch, implying their name was changed at some point during development.
 * They also bare a resemble to the titular Metroids from the Metroid series, as they are both floating alien creatures whose main form of attack is to attach themselves to heads of their prey. Like the Brain Suckler, this also causes the player to rapidly lose health until they are removed.