Orzhov Betrayer

When Orzhov Betrayer enters the battlefield,
Amass 1.
Whenever you put a +1/+1 counter on a creature
token you control, each opponent loses 1 life
and you gain 1 life.
"Just like the Syndicate to find a way to extract life
from the already dead. They are more concerned about
their blood tithes than the future of Ravnica"
-Aurelia