EarthQuaker Devices Afterneath V2 reverb pedal.

Excellent ambient / experimental reverb with a huge range from smeared cavernous space to strange clustered reflections and almost delay-like textures. Great on guitar for shoegaze, ambient textures, also very nice in synth, definitely a cool instrument in its own right with how you can get it to modulate, blend it in and it’s a super cool pedal.