Willow Dryad

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Fang of Shigeki

Dwarven Grunt

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Jagwasp Swarm

Crash of Rhinos

Orazca Frillback

Blood Moon

Sedge Scorpion

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Plated Slagwurm

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Typhoid Rats

Scryb Sprites

Streetbreaker Wurm

Regathan Firecat

Mountain

Leopard-Spotted Jiao

Moor Fiend

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Goblin Mountaineer

Kalonian Tusker

Forest

Eldrazi Devastator

Jukai Messenger

Memnite

Ruination Wurm

Garruk's Companion

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Moss Viper

Mountain Goat

Bull Hippo

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Roc Hunter

Nyxborn Brute

Shanodin Dryads

Gigantosaurus

Wildwood Patrol

Swordwise Centaur

Swamp

Glass Golem

Hired Poisoner

Frenzied Raptor

Hexplate Golem

Marsh Boa

Needlepeak Spider

Gore Swine

Woodland Druid

Conifer Strider

Gnottvold Recluse

Kalonian Behemoth

Shroud (This creature can't be the target of spells or abilities.)

Lightning Elemental

Haste (This creature can attack and {T} as soon as it comes under your control.)

Goblin Deathraiders

Pharika's Chosen

Vorstclaw

Terrain Elemental

Prizefighter Construct

Feral Abomination

Duskdale Wurm

Tajuru Blightblade

Swamp Mosquito

Flying
Whenever this creature attacks and isn't blocked, defending player gets a poison counter. (A player with ten or more poison counters loses the game.)

Thantis, the Warweaver

Vigilance, reach
All creatures attack each combat if able.
Whenever a creature attacks you or a planeswalker you control, put a +1/+1 counter on Thantis.

Blistering Barrier

Dancing Scimitar

Flying (This creature can't be blocked except by creatures with flying or reach.)

Leatherback Baloth

Spike Jester

Ancient Brontodon

Plague Beetle

Onakke Ogre

Gladecover Scout

Anaconda

Adaptive Snapjaw

Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Brushstrider

Vigilance (Attacking doesn't cause this creature to tap.)

Heartwood Treefolk

Bladetusk Boar

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)