Siegecraft

Enchant creature
Enchanted creature gets +2/+4.

Blood-Toll Harpy

Flying
When this creature enters, each player loses 1 life.

Swamp

Hallow

Prevent all damage target spell would deal this turn. You gain life equal to the damage prevented this way.

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on this creature.

Malakir Familiar

Flying, deathtouch
Whenever you gain life, this creature gets +1/+1 until end of turn.

Cradle to Grave

Destroy target nonblack creature that entered this turn.

Despoil

Destroy target land. Its controller loses 2 life.

Wandering Tombshell

Fortified Rampart

Angelic Blessing

Target creature gets +3/+3 and gains flying until end of turn. (It can't be blocked except by creatures with flying or reach.)

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Divine Congregation

You gain 2 life for each creature target player controls.
Suspend 5—{1}{W} (Rather than cast this card from your hand, you may pay {1}{W} and exile it with five time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Pillar of Light

Exile target creature with toughness 4 or greater.

Gurmag Swiftwing

Child of Night

Defeat

Destroy target creature with power 2 or less.

Aven Skirmisher

Enfeeblement

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature gets -2/-2.

Off Balance

Target creature can't attack or block this turn.

Artful Maneuver

Target creature gets +2/+2 until end of turn.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Ethereal Haze

Prevent all damage that would be dealt by creatures this turn.

Tandem Tactics

Up to two target creatures each get +1/+2 until end of turn. You gain 2 life.

Jungle Hollow

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {G}.

Douse in Gloom

Douse in Gloom deals 2 damage to target creature and you gain 2 life.

Maggot Carrier

When this creature enters, each player loses 1 life.

Honorable Scout

When this creature enters, you gain 2 life for each black and/or red creature target opponent controls.

Leonin Den-Guard

As long as this creature is equipped, it gets +1/+1 and has vigilance.

Dark Banishing

Destroy target nonblack creature. It can't be regenerated.

Last Gasp

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

Champion of Arashin

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Demystify

Shambling Goblin

When this creature dies, target creature an opponent controls gets -1/-1 until end of turn.

Corrupt

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.

Great Teacher's Decree

Creatures you control get +2/+1 until end of turn.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Revoke Existence

Sandcrafter Mage

When this creature enters, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)

Infantry Veteran

{T}: Target attacking creature gets +1/+1 until end of turn.

Ondu Greathorn

First strike
Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.

Ephara's Radiance

Enchant creature
Enchanted creature has "{1}{W}, {T}: You gain 3 life."

Archfiend of Depravity

Flying
At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

Ghostly Sentinel

Lagonna-Band Elder

When this creature enters, if you control an enchantment, you gain 3 life.

Font of Vigor

{2}{W}, Sacrifice this enchantment: You gain 7 life.

Rotting Mastodon

Plains

Mourning Thrull

({W/B} can be paid with either {W} or {B}.)
Flying
Whenever this creature deals damage, you gain that much life.

Crossbow Infantry

{T}: This creature deals 1 damage to target attacking or blocking creature.

Coat with Venom

Target creature gets +1/+2 and gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

Hand of Death

Skyshroud Falcon

Expedition Envoy

Hand of Silumgar

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Ukud Cobra

Crippling Blight

Enchant creature
Enchanted creature gets -1/-1 and can't block.

Nyx-Fleece Ram

At the beginning of your upkeep, you gain 1 life.

Celestial Archon

Bestow {5}{W}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Flying, first strike
Enchanted creature gets +4/+4 and has flying and first strike.

Accursed Spirit

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Renewed Faith

You gain 6 life.
Cycling {1}{W} ({1}{W}, Discard this card: Draw a card.)
When you cycle this card, you may gain 2 life.

Nirkana Assassin

Whenever you gain life, this creature gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

Brainwash

Enchant creature
Enchanted creature can't attack unless its controller pays {3}.

Mourning

Enchant creature
Enchanted creature gets -2/-0.
{B}: Return this Aura to its owner's hand.

Scholar of Athreos

{2}{B}: Each opponent loses 1 life. You gain life equal to the life lost this way.

Sungrace Pegasus

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Great-Horn Krushok

Contaminated Bond

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Whenever enchanted creature attacks or blocks, its controller loses 3 life.

Triad of Fates

{1}, {T}: Put a fate counter on another target creature.
{W}, {T}: Exile target creature that has a fate counter on it, then return it to the battlefield under its owner's control.
{B}, {T}: Exile target creature that has a fate counter on it. Its controller draws two cards.