Plains

Strength in Numbers

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of attacking creatures.

Goblin Wizardry

Create two 1/1 red Goblin Wizard creature tokens with prowess. (Whenever you cast a noncreature spell, they get +1/+1 until end of turn.)

Malcator's Watcher

Flying, vigilance
When this creature dies, draw a card.

Akroan Skyguard

Flying
Heroic — Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature.

Flame Rift

Flame Rift deals 4 damage to each player.

Traveler's Cloak

Enchant creature
As this Aura enters, choose a land type.
When this Aura enters, draw a card.
Enchanted creature has landwalk of the chosen type. (It can't be blocked as long as defending player controls a land of that type.)

Naturalize

Wild Guess

As an additional cost to cast this spell, discard a card.
Draw two cards.

Panic Attack

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

Soulknife Spy

Whenever this creature deals combat damage to a player, draw a card.

Smite

Festival

Cast this spell only during an opponent's upkeep.
Creatures can't attack this turn.

Living Lightning

When this creature dies, return target instant or sorcery card from your graveyard to your hand.

Doomed Traveler

When this creature dies, create a 1/1 white Spirit creature token with flying.

Temporal Isolation

Flash
Enchant creature
Enchanted creature has shadow. (It can block or be blocked by only creatures with shadow.)
Prevent all damage that would be dealt by enchanted creature.

Ral's Reinforcements

Create two 1/1 blue and red Elemental creature tokens.

Jade Avenger

Bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.)

Open the Gates

Search your library for a basic land card or Gate card, reveal it, put it into your hand, then shuffle.

Wrap in Vigor

Swift Response

Giant Growth

Target creature gets +3/+3 until end of turn.

Wingsteed Rider

Titanic Growth

Target creature gets +4/+4 until end of turn.

Forest

Prevent all combat damage that would be dealt this turn.

Reclaim

Put target card from your graveyard on top of your library.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Aqueous Form

Enchant creature
Enchanted creature can't be blocked.
Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Impulsive Pilferer

When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
Encore {3}{R} ({3}{R}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Ironclad Slayer

When this creature enters, you may return target Aura or Equipment card from your graveyard to your hand.

Militia Bugler

Vigilance (Attacking doesn't cause this creature to tap.)
When this creature enters, look at the top four cards of your library. You may reveal a creature card with power 2 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Slip Through Space

Devoid (This card has no color.)
Target creature can't be blocked this turn.
Draw a card.

Mogg War Marshal

Echo {1}{R} (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.)
When this creature enters or dies, create a 1/1 red Goblin creature token.

Guardian Zendikon

Enchant land
Enchanted land is a 2/6 white Wall creature with defender. It's still a land.
When enchanted land dies, return that card to its owner's hand.

Island

Guttersnipe

Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.

Shock

Stealer of Secrets

Krenko's Command

Create two 1/1 red Goblin creature tokens.

Unnatural Predation

Target creature gets +1/+1 and gains trample until end of turn.

Fists of Ironwood

Enchant creature
When this Aura enters, create two 1/1 green Saproling creature tokens.
Enchanted creature has trample.

Respite

Prevent all combat damage that would be dealt this turn. You gain 1 life for each attacking creature.

Detainment Spell

Enchant creature
Enchanted creature's activated abilities can't be activated.
{1}{W}: Attach this Aura to target creature.