Rage Extractor

({R/P} can be paid with either {R} or 2 life.)
Whenever you cast a spell with {H} in its mana cost, Rage Extractor deals damage equal to that spell's mana value to any target.

Porcelain Legionnaire

({W/P} can be paid with either {W} or 2 life.)
First strike

Apostle's Blessing

({W/P} can be paid with either {W} or 2 life.)
Target artifact or creature you control gains protection from artifacts or from the color of your choice until end of turn.

Immolating Souleater

{R/P}: Immolating Souleater gets +1/+0 until end of turn. ({R/P} can be paid with either {R} or 2 life.)

Incite

Target creature becomes red until end of turn and attacks this turn if able.

Marrow Shards

({W/P} can be paid with either {W} or 2 life.)
Marrow Shards deals 1 damage to each attacking creature.

Solemn Offering

Destroy target artifact or enchantment. You gain 4 life.

Pristine Talisman

Lumengrid Gargoyle

Whitesun's Passage

Phyrexian Rebirth

Destroy all creatures, then create an X/X colorless Phyrexian Horror artifact creature token, where X is the number of creatures destroyed this way.

Plains

Cathedral Membrane

({W/P} can be paid with either {W} or 2 life.)
Defender
When Cathedral Membrane dies during combat, it deals 6 damage to each creature it blocked this combat.

Moltensteel Dragon

({R/P} can be paid with either {R} or 2 life.)
Flying
{R/P}: Moltensteel Dragon gets +1/+0 until end of turn.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Act of Aggression

({R/P} can be paid with either {R} or 2 life.)
Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Mountain

Golem's Heart

Whenever a player casts an artifact spell, you may gain 1 life.

Kemba's Skyguard

Flying
When Kemba's Skyguard enters, you gain 2 life.

Inquisitor Exarch

When Inquisitor Exarch enters, choose one —
• You gain 2 life.
• Target opponent loses 2 life.

Ogre Resister

Slash Panther

({R/P} can be paid with either {R} or 2 life.)
Haste

Shattered Angel

Flying
Whenever a land an opponent controls enters, you may gain 3 life.

Blinding Souleater

{W/P}, {T}: Tap target creature. ({W/P} can be paid with either {W} or 2 life.)

Gut Shot

({R/P} can be paid with either {R} or 2 life.)
Gut Shot deals 1 damage to any target.