Here is my list of monsters ranked by tier:
Tier 1
:cool: Scout/Assassin
:D Pixie/Sprite
:): Peasants/Militia
:o Skeleton Warrior/Skeleton Archer
:(: Imp/Familiar
:mad: Goblin/Goblin Master
Tier 2
:cool: Archer/Crossbowman
:D Blood Maiden/Blood Fury
:): Blade Dancer/Thief Dancer
:o Horned Beast/Horned Overseer
:(: Zombie/Infected Zombie
:mad: Stone Gargoyle/Obsidian Gargoyle
Tier 3
:cool: Footman/Squire
:D Minotaur/Minotaur Guard
:): Hunter/Hunter Master
:o Hellhound/Cerberus
:(: Ghost/Spectre
:mad: Iron Golem/Steel Golem
Tier 4
:cool: Succubus/Succubus Queen
:D Dark Rider/Grim Rider
:): Griffin/Imperial Griffin
:o Druid/Druid Elder
:(: Vampire/Vampire Lord
:mad: Mage/Archmage
Tier 5
:cool: Hydra/Deep Hydra
:D Lich/Archlich
:): Djinn/Sultan Djinn
:o Monk/Inquisitor
:(: Unicorn/Silver Unicorn
:mad: Pit Fiend/Nightmare
Tier 6
:cool: Dark Witch/Dark Sorceress
:D Ent/Ancient Ent
:): Cavalier/Paladin
:o Wraith/Spirit
:(: Abomination/Lord of the Pit
:mad: Rakshasa Rani/Rakshasa Raja
Tier 7
:cool: Shadow Dragon/Black Dragon
:D Angel/Archangel
:): Green Dragon/Emerald Dragon
:o Devil/Archdevil
:(: Colossus/Titan
:mad: Bone Dragon/Spirit Dragon
That's all!:rolleyes: