Priest of the Baronial Church

When Sengir Autocrat enters the battlefield,
create three 0/1 black Serf creature tokens.
Serf tokens you control have Vigilance.
Sacrifice a Serf Tokens, {t}: create a colorless
Treasure artifact token with "{t}, Sacrifice this
artifact: Add one mana of any color."
"The Baron's state church requires tithes and
obedience; and almost noting else."