Akrasan Squire

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Ethersworn Canonist

Each player who has cast a nonartifact spell this turn can't cast additional nonartifact spells.

Flameblast Dragon

Flying
Whenever this creature attacks, you may pay {X}{R}. If you do, it deals X damage to any target.

Goblin

Goblin Assault

At the beginning of your upkeep, create a 1/1 red Goblin creature token with haste.
Goblin creatures attack each combat if able.

Goblin Mountaineer

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Hell's Thunder

Flying, haste
At the beginning of the end step, sacrifice this creature.
Unearth {4}{R} ({4}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Hissing Iguanar

Whenever another creature dies, you may have this creature deal 1 damage to target player or planeswalker.

Incurable Ogre

Saproling

Jund Battlemage

{B}, {T}: Target player loses 1 life.
{G}, {T}: Create a 1/1 green Saproling creature token.

Lightning Talons

Enchant creature
Enchanted creature gets +3/+0 and has first strike. (It deals combat damage before creatures without first strike.)

Magma Spray

Magma Spray deals 2 damage to target creature. If that creature would die this turn, exile it instead.

Predator Dragon

Flying, haste
Devour 2 (As this creature enters, you may sacrifice any number of creatures. It enters with twice that many +1/+1 counters on it.)

Excommunicate

Put target creature on top of its owner's library.

Resounding Thunder

Resounding Thunder deals 3 damage to any target.
Cycling {5}{B}{R}{G} ({5}{B}{R}{G}, Discard this card: Draw a card.)
When you cycle this card, it deals 6 damage to any target.

Ridge Rannet

Cycling {2} ({2}, Discard this card: Draw a card.)

Rockslide Elemental

First strike
Whenever another creature dies, you may put a +1/+1 counter on this creature.

Shards of Alara