Rakdos, the Muscle | Blood Pet | Haunted Crossroads

(and one other card)

Activate
Blood Pet by sacrificing it, adding ({B} magic symbol) .
When
Blood Pet dies,
Sifter of Skulls and
Rakdos trigger.
Resolve the
Sifter of Skulls trigger, creating a 1/1 Eldrazi Scion creature token.
Holding priority, activate
Haunted Crossroads by paying ({B} magic symbol) , putting
Blood Pet from your graveyard onto the top of your library.
Resolve the
Rakdos trigger, causing you to exile
Blood Pet from the top of your library with the ability to play it until your next end step.
Activate the Eldrazi Scion by sacrificing it, adding ({C} magic symbol) .
Cast
Blood Pet from exile by paying ({1} magic symbol) .
Repeat.