First strike Whenever a creature dealt damage by this creature this turn dies, you gain life equal to that creature's toughness.

Target creature gets +1/+1 and gains your choice of deathtouch or lifelink until end of turn. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it. Damage dealt by a creature with lifelink also causes its controller to gain that much life.)

Target opponent loses 3 life and you gain 3 life. Madness {B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Target creature gets +2/+1 until end of turn. If it's legendary, it also gains lifelink until end of turn.

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

Each opponent loses 3 life. You gain life equal to the life lost this way.

Kicker—Tap an untapped Vampire you control. (You may tap a Vampire you control in addition to any other costs as you cast this spell.) Target opponent loses half their life, rounded up. If this spell was kicked, you gain life equal to the life lost this way.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) When this creature dies, each opponent loses 2 life.

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

{B}, Pay 1 life: Add one mana of any color.

Enchant creature card in a graveyard When this Aura enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it. When this Aura leaves the battlefield, that creature's controller sacrifices it. Enchanted creature gets -1/-0.

Lifelink When this creature enters, you may return target Vampire or Wizard creature card from your graveyard to the battlefield.

{T}: Add one mana of any color in your commander's color identity.

When this creature enters, each player sacrifices a nontoken creature of their choice.

Remove all counters from all permanents and exile all tokens.

Target opponent reveals their hand. You choose a card from it with mana value 4 or greater and exile that card.

Flying At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Target creature gets -X/-X until end of turn. You gain X life.

As an additional cost to cast this spell, discard a card or pay 3 life. Destroy target creature or planeswalker.