Arms of Hadar

Creatures target player controls get -2/-2 until end of turn.

Exhume

Each player puts a creature card from their graveyard onto the battlefield.

Have

Forest

Haunted Mire

({T}: Add {B} or {G}.)
Haunted Mire enters tapped.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Night Soil

{1}, Exile two creature cards from a single graveyard: Create a 1/1 green Saproling creature token.

Eldrazi Repurposer

Devoid (This card has no color.)
When you cast this spell and when Eldrazi Repurposer dies, create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this creature: Add {C}."

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.

Weather the Storm

You gain 3 life.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Mountain

Gorilla Shaman

{X}{X}{1}: Destroy target noncreature artifact with mana value X.

Generous Ent

Reach
When Generous Ent enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
Forestcycling {1} ({1}, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)

Oliphaunt

Trample
Whenever Oliphaunt attacks, another target creature you control gets +2/+0 and gains trample until end of turn.
Mountaincycling {1} ({1}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Glimpse the Impossible

Exile the top three cards of your library. You may play those cards this turn. At the beginning of the next end step, if any of those cards remain exiled, put them into your graveyard, then create a 0/1 colorless Eldrazi Spawn creature token for each card put into your graveyard this way. Those tokens have "Sacrifice this creature: Add {C}."

Swamp

Geothermal Bog

({T}: Add {B} or {R}.)
Geothermal Bog enters tapped.

Cast Down

Avenging Hunter

Trample
When Avenging Hunter enters, you take the initiative.

Writhing Chrysalis

Devoid (This card has no color.)
When you cast this spell, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this creature: Add {C}."
Reach
Whenever you sacrifice another Eldrazi, put a +1/+1 counter on Writhing Chrysalis.

Dread Return

Return target creature card from your graveyard to the battlefield.
Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Wooded Ridgeline

({T}: Add {R} or {G}.)
Wooded Ridgeline enters tapped.

Troll of Khazad-dûm

Troll of Khazad-dûm can't be blocked except by three or more creatures.
Swampcycling {1} ({1}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

Deglamer

Choose target artifact or enchantment. Its owner shuffles it into their library.