Tier 3

Tier 3 is hard. It's highly reccomended to have Prot 6/Sharpness 7 with custom enchants to be safe fighting these monsters.

Easy Tier 3 Monsters:

Cactus Monster

Ooze

Medium Tier 3 Monsters:

Deathworm

Mutated Deathworm

Killer Croc

Hard Tier 3 Monsters:

Swamp Monster

Clay Golem

Stone Golem