Runaway Carriage

Trample
When Runaway Carriage attacks or blocks, sacrifice it at end of combat.

Howlpack Wolf

Howlpack Wolf can't block unless you control another Wolf or Werewolf.

Inner Struggle

Target creature deals damage to itself equal to its power.

Cathar's Companion

Whenever you cast a noncreature spell, Cathar's Companion gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Ember-Eye Wolf

Haste
{1}{R}: Ember-Eye Wolf gets +2/+0 until end of turn.

Mountain

Inspiring Captain

When Inspiring Captain enters, creatures you control get +1/+1 until end of turn.

Gryff's Boon

Enchant creature
Enchanted creature gets +1/+0 and has flying.
{3}{W}: Return Gryff's Boon from your graveyard to the battlefield attached to target creature. Activate only as a sorcery.

Dissension in the Ranks

Target blocking creature fights another target blocking creature.

Devilthorn Fox

Murderer's Axe

Equipped creature gets +2/+2.
Equip—Discard a card.

Flameblade Angel

Flying
Whenever a source an opponent controls deals damage to you or a permanent you control, you may have Flameblade Angel deal 1 damage to that source's controller.

Magmatic Chasm

Creatures without flying can't block this turn.

Pyre Hound

Trample
Whenever you cast an instant or sorcery spell, put a +1/+1 counter on Pyre Hound.

Dance with Devils

Create two 1/1 red Devil creature tokens. They have "When this creature dies, it deals 1 damage to any target."

Nahiri's Machinations

At the beginning of combat on your turn, target creature you control gains indestructible until end of turn.
{1}{R}: Nahiri's Machinations deals 1 damage to target blocking creature.

Lightning Axe

As an additional cost to cast this spell, discard a card or pay {5}.
Lightning Axe deals 5 damage to target creature.

Stern Constable

{T}, Discard a card: Tap target creature.

Angelic Purge

As an additional cost to cast this spell, sacrifice a permanent.
Exile target artifact, creature, or enchantment.

Plains

Devils' Playground

Create four 1/1 red Devil creature tokens. They have "When this creature dies, it deals 1 damage to any target."