Epicure of Blood

Whenever you gain life, each opponent loses 1 life.

Swamp

Infestation Sage

When this creature dies, create a 1/1 black and green Insect creature token with flying.

Helpful Hunter

Healer's Hawk

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

Corrupted Conviction

As an additional cost to cast this spell, sacrifice a creature.
Draw two cards.

Acrobatic Maneuver

Exile target creature you control, then return that card to the battlefield under its owner's control.
Draw a card.

Lifecreed Duo

Flying
Whenever another creature you control enters, you gain 1 life.

Hinterland Sanctifier

Whenever another creature you control enters, you gain 1 life.

Deadly Dispute

As an additional cost to cast this spell, sacrifice an artifact or creature.
Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Plains

Impassioned Orator

Sanguine Syphoner

Whenever this creature attacks, each opponent loses 1 life and you gain 1 life.

Forlorn Flats

Forlorn Flats enters tapped.
When Forlorn Flats enters, it deals 1 damage to target opponent.
{T}: Add {W} or {B}.

Agate-Blade Assassin

Whenever Agate-Blade Assassin attacks, defending player loses 1 life and you gain 1 life.

Scoured Barrens

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