Vampiric Rites

{1}{B}, Sacrifice a creature: You gain 1 life and draw a card.

Utopia Sprawl

Enchant Forest
As Utopia Sprawl enters, choose a color.
Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

Biorhythm

Each player's life total becomes the number of creatures they control.

Luminous Broodmoth

Flying
Whenever a creature you control without flying dies, return it to the battlefield under its owner's control with a flying counter on it.

Sanguine Bond

Whenever you gain life, target opponent loses that much life.

Repercussion

Whenever a creature is dealt damage, Repercussion deals that much damage to that creature's controller.

Mist Dragon

{0}: Mist Dragon gains flying. (This effect lasts indefinitely.)
{0}: Mist Dragon loses flying. (This effect lasts indefinitely.)
{3}{U}{U}: Mist Dragon phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)

Exquisite Blood

Whenever an opponent loses life, you gain that much life.

Humility

All creatures lose all abilities and have base power and toughness 1/1.

Lifetap

Whenever a Forest an opponent controls becomes tapped, you gain 1 life.

Staff of Nin

At the beginning of your upkeep, draw a card.
{T}: Staff of Nin deals 1 damage to any target.