Cast Down

Blood Burglar

During your turn, Blood Burglar has lifelink.(Damage dealt by this creature also causes you to gain that much life.)

Target creature gets +1/+0 and gains first strike until end of turn.
Draw a card.

Choose one —
• You gain 4 life.
• Destroy target enchantment.
• Put a +1/+1 counter on target creature.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

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

{T}: Target player exiles a card from their graveyard.
{1}, Exile Relic of Progenitus: Exile all graveyards. Draw a card.

Whenever you gain life, each opponent loses 1 life.

Barren Moor enters tapped.
{T}: Add {B}.
Cycling {B} ({B}, Discard this card: Draw a card.)

Mortuary Mire enters tapped.
When Mortuary Mire enters, you may put target creature card from your graveyard on top of your library.
{T}: Add {B}.

Target player draws two cards and loses 2 life.

When Dusk Legion Zealot enters, you draw a card and you lose 1 life.

Enchant creature
Enchanted creature gets +2/+0 and has "When this creature dies, draw a card."