I need help designing some of the Darkness's stages in Pibby's Apocalypse V2.

This sounds like a really fun creative challenge! Filling out 28 stages is no joke, so here is a concept for an intermediate stage to help pad out the middle of the metamorphosis.

• Phase Number: Stage 15
• Name: The Command Core Glitch
• Appearance: The central mass starts taking on a blocky, angular shape reminiscent of a Wither Skull, but heavily distorted with glitching purple and black static pixels wrapping around it like mechanical veins.
• What it does: At this stage, the Darkness stops just passively corrupting the environment and starts emitting a localized "Glitch Pulse" every few minutes. Any player or mob caught in the pulse gets temporarily blinded and suffers a brief movement stutter, simulating command-block errors in the game code.

Hope this helps spark some inspiration for the rest of the stages! Are you aiming to make the middle phases focus more on structural corruption or mob mutations?