Loot Chests

Drop from each mob:

Common Loot Chest:

Zombie, Skeleton, Spider, Husk, and Cave Spider
Uncmomon Loot Chest:

Stray, Slime, Drowned, Phantom, and Pillager
Rare Loot Chest:

Witch, Blaze, Enderman, and Ravager
Epic Loot Chest:

Evoker, Guardian, and Elder Guardian
Legendary Loot Chest:

Warden, Wither, and Ender Dragon

Drop Chance:

Common: 0.3

Uncommon: 0.2

Rare: 0.1

Epic: 0.05

Legendary: 0.02

NOTE: If you place nine loot chests on the crafting table, you can also increase the level.