Veinfire Borderpost

You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost.
Veinfire Borderpost enters the battlefield tapped.
{T}: Add {B} or {R}.

Werebear

{T}: Add {G}.
Threshold — Werebear gets +3/+3 as long as seven or more cards are in your graveyard.

Faithless Looting

Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Akki Blizzard-Herder

When Akki Blizzard-Herder dies, each player sacrifices a land.

Firewild Borderpost

You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost.
Firewild Borderpost enters the battlefield tapped.
{T}: Add {R} or {G}.

Mountain

Crack the Earth

Cathartic Reunion

As an additional cost to cast this spell, discard two cards.
Draw three cards.

Flame Slash

Flame Slash deals 4 damage to target creature.

Raze

As an additional cost to cast this spell, sacrifice a land.
Destroy target land.

Gone

Return target creature you don't control to its owner's hand.

Dead

Dead // Gone

Harvest Wurm

When Harvest Wurm enters the battlefield, sacrifice it unless you return a basic land card from your graveyard to your hand.

Tremble

Hooting Mandrills

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Trample