Giant Cockroach

These new hostile mobs live exclusively in caves with their spawn rate higher in certain cave biomes. As mentioned before, these giant insects are hostile, but deal little damage, however do have crazy amounts of health. Spiders will occasionally hunt cockroaches. Once killed cockroaches can drop 2 new items. The first item, roach legs, have a 100% rate that drops in 1-3, roach legs are used as an easy food source in the caves. The second item, roach shell, have 1-5% rate that drop only 1 per mob. Roach shells can be used to brew potion of resistance, craft a new upgradable shield with increased strength and durability, as well as a new capsule item that once consumed, grants the player double health until they are either killed, or when that second health bar is depleted.