Avzerixs cataclysms

ice elemental: spawns in snowy biomes (minus snowy beach) and frozen biomes

magmatic elemental: spawns in the nether and deserts.

there is three extreme mode exclusive mobs:

harbinger: has a 25% chance to spawn after killing a mob, including another harbinger

frozen destroyer: spawn’s instead of ice elementals

magmatic destroyer: spawn’s instead of magmatic elementals

there is three boss mobs:

The Grand Arbider: one phase

Zarnok the Breaker: two phases

infinirus Infinirus the broken: three phases

it removes the split armour.

dark sword, dark spear, dark armour, custom mob model armours, and a achievement line up (like most mods), and six enchantments.