Luxurious enclosure.

As an additional cost to play Luxurious Enclosure,
exile target creature under your control.
{4}{b}, Sacrifice to Luxurious Enclosure: return
that exiled creature card to the battlefield under
its owner's control. If you do exile another target creature.
{t}: Add {b} to your mana pool.
"Now where is Mr Dobson"? queried the judge,
"Here"! said a voice behind them.
The Mystery of the Grave-Yard—H.P.Lovecraft.