A Stalker
The Stalker is a hostile mob that spawns naturally in the deep dark biome, specifically when too many sculk shriekers are activated. They were an early design for the warden, before the hollowed.
Appearance[]
The Stalker is about 3 blocks tall when standing bipedally, but about a block tall when on all fours. The Stalker has a tall neck and head with a pair of small, bioluminescent ears. When detecting sound, the Stalker's ears increase and decrease in size and light up when the source of sound gets near the Stalker.