When Blood Spatter Analysis enters, it deals 3 damage to target creature an opponent controls. Whenever one or more creatures die, mill a card and put a bloodstain counter on Blood Spatter Analysis. Then sacrifice it if it has five or more bloodstain counters on it. When you do, return target creature card from your graveyard to your hand.
At the beginning of your upkeep, you may sacrifice Blood Speaker. If you do, search your library for a Demon card, reveal that card, put it into your hand, then shuffle. Whenever a Demon enters under your control, return Blood Speaker from your graveyard to your hand.
Choose one — • Destroy all creatures. • Destroy all planeswalkers. Then return a creature or planeswalker card with mana value X or less from your graveyard to the battlefield, where X is the amount of {S} spent to cast this spell.
Flying At the beginning of combat on your turn, up to one target Blood token you control becomes a 2/2 black Bat creature with flying and haste in addition to its other types.
"Humans throw rice and release doves at their weddings? How quaint."
At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on Bloodchief Ascension. Whenever a card is put into an opponent's graveyard from anywhere, if Bloodchief Ascension has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.
Kicker {2}{B} Destroy target creature or planeswalker with mana value 2 or less. If this spell was kicked, instead destroy target creature or planeswalker.
Flying Bloodfeather Phoenix can't block. Whenever an instant or sorcery spell you control deals damage to an opponent or battle, you may pay {R}. If you do, return Bloodfeather Phoenix from your graveyard to the battlefield. It gains haste until end of turn.
Equipped creature gets +2/+0. Whenever equipped creature deals combat damage to a player, create a token that's a copy of Bloodforged Battle-Axe. Equip {2}
She awoke with blood on her brow, an axe in her hand, and heads at her feet.
Bloodghast can't block. Bloodghast has haste as long as an opponent has 10 or less life. Landfall — Whenever a land you control enters, you may return Bloodghast from your graveyard to the battlefield.
Flying {T}: Create a 2/2 black Vampire creature token with flying. {B}: Transform Bloodline Keeper. Activate only if you control five or more Vampires.
Changeling As Bloodline Pretender enters, choose a creature type. Whenever another creature you control of the chosen type enters, put a +1/+1 counter on Bloodline Pretender.