Jackal Familiar

Jackal Familiar can't attack or block alone.

Forge Devil

When Forge Devil enters, it deals 1 damage to target creature and 1 damage to you.

Panic Attack

Up to three target creatures can't block this turn.

Bloodstone Goblin

Whenever you cast a spell, if that spell was kicked, Bloodstone Goblin gets +1/+1 and gains menace until end of turn. (It can't be blocked except by two or more creatures.)

Ogre Leadfoot

Whenever Ogre Leadfoot becomes blocked by an artifact creature, destroy that creature.

Valakut Fireboar

Whenever Valakut Fireboar attacks, switch its power and toughness until end of turn.

Fearsome Temper

Enchant creature
Enchanted creature gets +2/+2 and has "{2}{R}: Target creature can't block this creature this turn."

Berserkers of Blood Ridge

Berserkers of Blood Ridge attacks each combat if able.

Vaultbreaker

Whenever Vaultbreaker attacks, you may discard a card. If you do, draw a card.
Dash {2}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Geyser Glider

Landfall — Whenever a land you control enters, Geyser Glider gains flying until end of turn.

Seismic Shudder

Seismic Shudder deals 1 damage to each creature without flying.

Igneous Elemental

This spell costs {2} less to cast if there is a land card in your graveyard.
When Igneous Elemental enters, you may have it deal 2 damage to target creature.

Volatile Claws

Until end of turn, creatures you control get +2/+0 and gain all creature types.

Volcanic Hammer

Volcanic Hammer deals 3 damage to any target.

Goblin Roughrider

Epiphany Storm

Enchant creature
Enchanted creature has "{R}, {T}, Discard a card: Draw a card."

Chandra's Defeat

Chandra's Defeat deals 5 damage to target red creature or red planeswalker. If that permanent is a Chandra planeswalker, you may discard a card. If you do, draw a card.

Blur of Blades

Put a -1/-1 counter on target creature. Blur of Blades deals 2 damage to that creature's controller.

Varchild's Crusader

{0}: Varchild's Crusader can't be blocked this turn except by Walls. Sacrifice Varchild's Crusader at the beginning of the next end step.

Incurable Ogre

Mountain

Cartouche of Zeal

Enchant creature you control
When Cartouche of Zeal enters, target creature can't block this turn.
Enchanted creature gets +1/+1 and has haste. (It can attack and {T} no matter when it came under your control.)

Tarfire

Miner's Bane

{2}{R}: Miner's Bane gets +1/+0 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Clear a Path

Flameborn Viron

Raging Goblin

Haste (This creature can attack and {T} as soon as it comes under your control.)

Goblin Arsonist

When Goblin Arsonist dies, you may have it deal 1 damage to any target.

Orcish Spy

{T}: Look at the top three cards of target player's library.

Seismic Strike

Seismic Strike deals damage to target creature equal to the number of Mountains you control.