Mercadia’s Downfall

Each attacking creature gets +1/+0 until end of turn for each nonbasic land defending player controls.

Glowing Anemone

When Glowing Anemone enters the battlefield, you may return target land to its owner’s hand.

Uphill Battle

Creatures played by your opponents enter the battlefield tapped.

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.

Tremor

Tremor deals 1 damage to each creature without flying.

Time Warp

Target player takes an extra turn after this one.

Goblin Chariot

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

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.

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.

Vitalize

Untap all creatures you control.

Tremor

Tremor deals 1 damage to each creature without flying.

Thran War Machine

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
Thran War Machine attacks each combat if able.