A quick first boss I put together that shouldn't be too hard to beat with a team. Can be spawned via a spawn egg given by Wandering Traders. Does not take any fall damage, is very fast, and can step over fences.

50 Health

20 Armor (40 Total)

4 Armor Toughness

100% Chance to drop Headbud

10% each to drop a Chainmail Chestplate, Chainmail Leggings, Chainmail Boots, and Enchanted Plaything