Monster

A monster is the set of mobs that attack players.

Monsters

 * Zombies
 * Skeletons
 * Creepers
 * Cave Spiders
 * Endermite
 * Magma Cubes
 * Slimes
 * Wither Skeletons
 * Guardians
 * Elder Guardians
 * The Wither Boss
 * The Ender Dragon

Special Cases

 * Zombie Pigmen - only attack players when attacked first
 * Wolves - only attack players if untamed (not dogs) and when attacked first
 * Spiders - only attack at night or when first attacked during the day
 * Endermen - only attack when looked at without a pumpkin worn as a helmet