Cavern Crawler

Mountainwalk (This creature can’t be blocked as long as defending player controls a Mountain.)
: Cavern Crawler gets +1/-1 until end of turn.

Extortion

Look at target player’s hand and choose up to two cards from it. That player discards those cards.

Deepwood Legate

If an opponent controls a Forest and you control a Swamp, you may cast this spell without paying its mana cost.
: Deepwood Legate gets +1/+1 until end of turn.

Natural Affinity

All lands become 2/2 creatures until end of turn. They’re still lands.

Saprazzan Breaker

: Mill a card. If a land card was milled this way, Saprazzan Breaker can’t be blocked this turn.

Righteous Aura

, Pay 2 life: The next time a source of your choice would deal damage to you this turn, prevent that damage.

Goblin Chariot

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

Tremor

Tremor deals 1 damage to each creature without flying.

Time Warp

Target player takes an extra turn after this one.

Apprentice Necromancer

, , Sacrifice Apprentice Necromancer: Return target creature card from your graveyard to the battlefield. That creature gains haste. At the beginning of the next end step, sacrifice it.

Urza’s Incubator

As Urza’s Incubator enters the battlefield, choose a creature type.
Creature spells of the chosen type cost less to cast.

Aether Sting

Whenever an opponent casts a creature spell, Aether Sting deals 1 damage to that player.

Rofellos’s Gift

Reveal any number of green cards in your hand. Return an enchantment card from your graveyard to your hand for each card revealed this way.

Chime of Night

Enchant creature
When Chime of Night is put into a graveyard from the battlefield, destroy target nonblack creature.

Tremor

Tremor deals 1 damage to each creature without flying.

Vitalize

Untap all creatures you control.

Sluggishness

Enchant creature
Enchanted creature can’t block.
When Sluggishness is put into a graveyard from the battlefield, return Sluggishness to its owner’s hand.