Ghosts in abandoned villages

I like the zombie villages and as haunted as they look it would be cool to experience a ghost mob there as well to add to its haunted immersion. It’s drop could make a new potion that allowed player to pass through walls for 1:30 or longer with glowstone dust added to the brew. Idk what the drop would be though or what the potion would be called. Maybe potion of passing or potion of phasing