Syndicate Heavy

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
At the beginning of each end step, if you gained 4 or more life this turn, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Glorifier of Dusk

Pay 2 life: This creature gains flying until end of turn.
Pay 2 life: This creature gains vigilance until end of turn.

Syndicate Messenger

Flying
Afterlife 1 (When this creature dies, create a 1/1 white and black Spirit creature token with flying.)

Orzhov Basilica

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {W}{B}.

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on this creature.

Council's Judgment

Will of the council — Starting with you, each player votes for a nonland permanent you don't control. Exile each permanent with the most votes or tied for most votes.

Plains

Vizkopa Vampire

Twilight Panther

{B}: This creature gains deathtouch until end of turn.

Syndic of Tithes

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)

Thriving Heath

This land enters tapped. As it enters, choose a color other than white.
{T}: Add {W} or one mana of the chosen color.

Tandem Tactics

Up to two target creatures each get +1/+2 until end of turn. You gain 2 life.

Angel of Vitality

Flying
If you would gain life, you gain that much life plus 1 instead.
This creature gets +2/+2 as long as you have 25 or more life.

Deadly Riposte

Deadly Riposte deals 3 damage to target tapped creature and you gain 2 life.

Orzhov Guildgate

This land enters tapped.
{T}: Add {W} or {B}.

Afterlife Insurance

Creatures you control gain afterlife 1 until end of turn. Draw a card. (When a creature with afterlife 1 dies, create a 1/1 white and black Spirit creature token with flying.)