Marrow Shards

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

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.

Blinding Souleater

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

Solemn Offering

Destroy target artifact or enchantment. You gain 4 life.

Plains

Slash Panther

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

Inquisitor Exarch

When this creature enters, choose one —
• You gain 2 life.
• Target opponent loses 2 life.

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.

Kemba's Skyguard

Flying
When this creature enters, you gain 2 life.

Mountain

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Moltensteel Dragon

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

Incite

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

Immolating Souleater

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

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.

Lumengrid Gargoyle

Shattered Angel

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

Gut Shot

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

Pristine Talisman

Porcelain Legionnaire

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

Ogre Resister

Whitesun's Passage

Rage Extractor

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

Cathedral Membrane

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