Cockatrice

Gaea's Liege

Creature — Avatar (0/0)

As long as Gaea's Liege isn't attacking, its power and toughness are each equal to the number of Forests you control. As long as Gaea's Liege is attacking, its power and toughness are each equal to the number of Forests defending player controls.
: Target land becomes a Forest until Gaea's Liege leaves the battlefield.

Jolrael, Empress of Beasts

Legendary Creature — Human Spellshaper (3/3)

, , Discard two cards: All lands target player controls become 3/3 creatures until end of turn. They're still lands.

Verdeloth the Ancient

Legendary Creature — Treefolk (4/7)

Kicker (You may pay an additional as you cast this spell.)
Saproling creatures and other Treefolk creatures get +1/+1.
When Verdeloth the Ancient enters the battlefield, if it was kicked, create X 1/1 green Saproling creature tokens.

Scragnoth

Creature — Beast (3/4)

This spell can't be countered.
Protection from blue

Vhati il-Dal

Legendary Creature — Human Warrior (3/3)

: Until end of turn, target creature has base power 1 or base toughness 1.

Jasmine Boreal

Legendary Creature — Human (4/5)

Mystic Enforcer

Creature — Human Nomad Mystic (3/3)

Protection from black
Threshold — As long as seven or more cards are in your graveyard, Mystic Enforcer gets +3/+3 and has flying.

Mystic Snake

Creature — Snake (2/2)

Flash
When Mystic Snake enters the battlefield, counter target spell.

Spitting Slug

Creature — Slug (2/4)

Whenever Spitting Slug blocks or becomes blocked, you may pay . If you do, Spitting Slug gains first strike until end of turn. Otherwise, each creature blocking or blocked by Spitting Slug gains first strike until end of turn.

Craw Giant

Creature — Giant (6/4)

Trample
Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

Desolation Giant

Creature — Giant (3/3)

Kicker (You may pay an additional as you cast this spell.)
When Desolation Giant enters the battlefield, destroy all other creatures you control. If it was kicked, destroy all other creatures instead.

Goblin Snowman

Creature — Goblin (1/1)

Whenever Goblin Snowman blocks, prevent all combat damage that would be dealt to and dealt by it this turn.
: Goblin Snowman deals 1 damage to target creature it's blocking.

Avalanche Riders

Creature — Human Nomad (2/2)

Haste
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Avalanche Riders enters the battlefield, destroy target land.

Evil Eye of Orms-by-Gore

Creature — Eye (3/6)

Non-Eye creatures you control can't attack.
Evil Eye of Orms-by-Gore can't be blocked except by Walls.

Giant Oyster

Creature — Oyster (0/3)

You may choose not to untap Giant Oyster during your untap step.
: For as long as Giant Oyster remains tapped, target tapped creature doesn't untap during its controller's untap step, and at the beginning of each of your draw steps, put a -1/-1 counter on that creature. When Giant Oyster leaves the battlefield or becomes untapped, remove all -1/-1 counters from the creature.

Sol'kanar the Swamp King

Legendary Creature — Demon (5/5)

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
Whenever a player casts a black spell, you gain 1 life.

Thornscape Battlemage

Creature — Elf Wizard (2/2)

Kicker and/or (You may pay an additional and/or as you cast this spell.)
When Thornscape Battlemage enters the battlefield, if it was kicked with its kicker, it deals 2 damage to any target.
When Thornscape Battlemage enters the battlefield, if it was kicked with its kicker, destroy target artifact.

Faceless Butcher

Creature — Nightmare Horror (2/3)

When Faceless Butcher enters the battlefield, exile another target creature.
When Faceless Butcher leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Hunting Moa

Creature — Bird Beast (3/2)

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Hunting Moa enters the battlefield or dies, put a +1/+1 counter on target creature.

Krosan Cloudscraper

Creature — Beast Mutant (13/13)

At the beginning of your upkeep, sacrifice Krosan Cloudscraper unless you pay .
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)