Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.

Whenever a creature enters the battlefield under an opponent's control, you may have that player lose 1 life.

Bloodghast can't block. Bloodghast has haste as long as an opponent has 10 or less life. Landfall — Whenever a land enters the battlefield under your control, you may return Bloodghast from your graveyard to the battlefield.

Kicker {B} (You may pay an additional {B} as you cast this spell.) When Gatekeeper of Malakir enters the battlefield, if it was kicked, target player sacrifices a creature.

Deathtouch, lifelink

Flying Olivia's Bloodsworn can't block. {R}: Target Vampire gains haste until end of turn.