Monsters

Behavior

Sunlight

Normally during the day in Minecraft, undead mobs would burn in the sunlight, well not anymore, they have now evolved to not care about sunlight making it not safe even during the day, they still however will only spawn at light level 0 though.

Depth Based Health Increase

When a Monster type mob spawns it will calacute its Y level and scale its damage accordingly. using the math fomula "depthMultiplier = 1.0 + ((64 - y) / 10) * 0.1", Every -10 Y levels increases multiplier by 0.1x. this can be disabled with the gamerule "hostileCaveBuff" being set to false.