In addition to the vanilla mobs that spawn throughout the world, there are several extra-dangerous Mythic Mobs that spawn randomly in certain regions. Mythic Mobs have special abilities and are significantly harder to kill than normal mobs, but have a chance to drop extra experience and/or unique Mythic Loot that can be sold to vendors in NPC Towns!
Goblin
Spawns in: Plains of An'she
Mythic Loot: Goblin Ear
Purelaker Rogue
Spawns in: Plains of An'she
Mythic Loot: Rogue's Gempurse
Forest Spider
Spawns in: Odera Forest
Mythic Loot: Venom Gland
Wraith
Spawns in: The Wraithwood
Mythic Loot: Ectoplasm
Shen Mutant
Spawns in: The Grey Isles
Mythic Loot: Strange Spores
Mana Ray
Spawns in: The Grey Isles
Mythic Loot: Mana Shard
Swamp Ogre
Spawns in: The Ancient Glade
Mythic Loot: Ogre Tooth
Giant Leech
Spawns in: The Ancient Glade
Mythic Loot: Leech Cocoon
Renegade Pirate
Spawns in: Zarakam Jungle
Mythic Loot: Stolen Doubloon
Brain Slime
Spawns in: Zarakam Jungle
Mythic Loot: Brainslime
Dire Wolf
Spawns in: Snowglade Mountains
Mythic Loot: Pristine Wolf Pelt
Timberhawk
Spawns in: The Timberlands
Mythic Loot: Hawk Feather
Frozen Corpse
Spawns in: The Ice Forest, The Drakon Isles
Mythic Loot: Heart of Frost
Dunsmoor Stalker
Spawns in: Dunsmoor Hills
Mythic Loot: Stalker Pelt
Elemental Spirits
Spawns in: Redfire Mesa, Odera Forest, The Ice Forest, Yukrovian Highlands
Mythic Loot: Wind Essence, Fire Essence, Frost Essence, Earth Essence, Wood Essence
Rebel Warlord
Spawns in: Vantis Desert
Mythic Loot: Cirilian Gold
Desert Shade
Spawns in: Vantis Desert
Mythic Loot: Dusk Shard
Iron Guardian
Spawns in: The Iron Foothills
Mythic Loot: Valderkal Steel
Mesa Crawler
Spawns in: Redfire Mesa
Mythic Loot: Hardened Chitin
Goldfeather Eagle
Spawns in: Goldwatch Plateau
Mythic Loot: Goldfeather Plume
Cirilian Bandit
Spawns in: Goldwatch Plateau
Mythic Loot: Bandit's Ring
Highland Yeti
Spawns in: Yukrovian Highlands
Mythic Loot: Yeti Hide
Phantom Soldier
Spawns in: Yukrovian Highlands
Mythic Loot: Yukrovian Armament