The Shadow Palace

{t}Tap: Add Colorless.
{5}, {t}, Pay 1 life: Create a 1/1 white and black
Human Cleric creature token.
{5}, {t}, Sacrifice five creatures: Transform
The Shadow Palace, then untap it.
(Base Card—Westvale Abbey)
"The shadow-palace connects this
world to the underworld"
—Patri