Den Protector

Creatures with power less than Den Protector's power can't block it. Megamorph {1}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.) When Den Protector is turned face up, return target card from your graveyard to your hand.

Languish

All creatures get -4/-4 until end of turn.

Ultimate Price

Destroy target monocolored creature.

Caves of Koilos

{T}: Add {1} to your mana pool. {T}: Add {W} or {B} to your mana pool. Caves of Koilos deals 1 damage to you.

Llanowar Wastes

{T}: Add {1} to your mana pool. {T}: Add {B} or {G} to your mana pool. Llanowar Wastes deals 1 damage to you.

Gideon, Ally of Zendikar

Ob Nixilis Reignited

Ruinous Path

Shambling Vent

Transgress the Mind

Grasp of Darkness

Hissing Quagmire

Kalitas, Traitor of Ghet

Oath of Nissa

Sylvan Advocate

Anguished Unmaking

Sorin, Grim Nemesis

Traverse the Ulvenwald

Emrakul, the Promised End

Ishkanah, Grafwidow

Liliana, the Last Hope

Evolving Wilds

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

Plains

({T}: Add {W}.)

Swamp

({T}: Add {B}.)

Forest

({T}: Add {G}.)