List of Creature Types

Advisor
Ally
Angel
Anteater
Antelope
Ape
Archer
Archon
Artificer
Assassin
Assembly-Worker
Atog
Aurochs
Avatar
Badger
Barbarian
Basilisk
Bat
Bear
Beast
Beeble
Berserker
Bird
Blinkmoth
Boar
Bringer
Brushwagg
Camarid
Camel
Caribou
Carrier
Cat
Centaur
Cephalid
Chimera
Citizen
Cleric
Cockatrice
Construct
Coward
Crab
Crocodile
Cyclops
Dauthi
Demon
Deserter
Devil
Djinn
Dragon
Drake
Dreadnought
Drone
Druid
Dryad
Dwarf
Efreet
Egg
Elder
Eldrazi
Elemental
Elephant
Elf
Elk
Eye
Faerie
Ferret
Fish
Flagbearer
Fox
Frog
Fungus
Gargoyle
Giant
Gnome
Goat
Goblin
Golem
Gorgon
Graveborn
Gremlin
Griffin
Hag
Harpy
Hellion
Hippo
Hippogriff
Homarid
Homunculus
Horror
Horse
Hound
Human
Hydra
Hyena
Illusion
Imp
Incarnation
Insect
Jellyfish
Juggernaut
Kavu
Kirin
Kithkin
Knight
Kobold
Kor
Kraken
Lammasu
Leech
Leviathan
Lhurgoyf
Licid
Lizard
Manticore
Masticore
Mercenary
Merfolk
Metathran
Minion
Minotaur
Monger
Mongoose
Monk
Moonfolk
Mutant
Myr
Mystic
Nautilus
Nephilim
Nightmare
Nightstalker
Ninja
Noggle
Nomad
Octopus
Ogre
Ooze
Orb
Orc
Orgg
Ouphe
Ox
Oyster
Pegasus
Pentavite
Pest
Phelddagrif
Phoenix
Pincher
Pirate
Plant
Prism
Rabbit
Rat
Rebel
Reflection
Rhino
Rigger
Rogue
Salamander
Samurai
Sand
Saproling
Satyr
Scarecrow
Scorpion
Scout
Serf
Serpent
Shade
Shaman
Shapeshifter
Sheep
Siren
Skeleton
Slith
Sliver
Slug
Snake
Soldier
Soltari
Spawn
Specter
Spellshaper
Sphinx
Spider
Spike
Spirit
Splinter
Sponge
Squid
Squirrel
Starfish
Surrakar
Survivor
Tetravite
Thalakos
Thopter
Thrull
Treefolk
Triskelavite
Troll
Turtle
Unicorn
Vampire
Vedalken
Viashino
Volver
Wall
Warrior
Weird
Whale
Wizard
Wolf
Wolverine
Wombat
Worm
Wraith
Wurm
Yeti
Zombie
Zubera

What did they do to Lady-of-proper-etiquette?

This is only up-to-date since Zendikar anyway; Eldrazi and Hippogriff I'll add in manually.

Gremlins are in!