Nightfall plague

Support for Minecraft 1.21.1

Changes and new features:

• Updated particles (now when the Night Bleeder attacks and heals, it will release red skull particles).
• The Night Bleeder can now see players in Creative mode.
• When the Night Bleeder transforms into Blightwing, it will plunge everything into darkness for a second (to give the bat a slight chance to escape).
• The Night Bleeder's eyes now glow in the dark.
• The Blightwing's eyes now glow in the dark.
• The Cursed Tusk is consumed when attacking an entity with it.
• minior bug fix...

(It may not be compatible with future versions since I had to change some things for the mod to work on 1.21.1)