Mono-Black Burn

Each opponent discards two cards. If you control a Vampire, each opponent loses 2 life and you gain 2 life.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I, II — Chainer's Torment deals 2 damage to each opponent and you gain 2 life.

III — Create an X/X black Nightmare Horror creature token, where X is half your life total, rounded up. It deals X damage to you.

Flying

When Fell Specter enters the battlefield, target opponent discards a card.

Whenever an opponent discards a card, that player loses 2 life.

Memorial to Folly enters the battlefield tapped.

{T}: Add {B}.

{2}{B}, {T}, Sacrifice Memorial to Folly: Return target creature card from your graveyard to your hand.

Destroy target creature.

Flying

When Skymarch Bloodletter enters the battlefield, target opponent loses 1 life and you gain 1 life.

Target player loses 3 life and you gain 3 life.

({T}: Add {B}.)

When Tattered Mummy dies, each opponent loses 2 life.

{2}, {T}: Each opponent loses 1 life and you gain 1 life.

Flying

When Vampire Sovereign enters the battlefield, target opponent loses 3 life and you gain 3 life.

Whenever Vicious Conquistador attacks, each opponent loses 1 life.

Destroy target non-Merfolk creature.