Chthonian Nightmare | Skittering Precursor | Greedy Freebooter

(and one other card)

Chthonian Nightmare in hand.
Skittering Precursor on the battlefield.
Greedy Freebooter and
Impulsive Pilferer on the battlefield or in your graveyard.

One of
Greedy Freebooter or
Impulsive Pilferer must be on the battlefield with the other in your graveyard.

Cast
Chthonian Nightmare by paying ({1} magic symbol) ({B} magic symbol) .
When
Chthonian Nightmare enters the battlefield, it triggers, causing you to get ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) .
Activate
Chthonian Nightmare by paying an amount of ({E} magic symbol) , sacrificing
Greedy Freebooter or
Impulsive Pilferer and returning
Chthonian Nightmare from the battlefield to your hand.
When
Greedy Freebooter or
Impulsive Pilferer dies, it and
Skittering Precursor trigger.
Resolve the
Greedy Freebooter or
Impulsive Pilferer trigger, creating a Treasure token.
Resolve the
Skittering Precursor trigger, creating a 0/1 Eldrazi Spawn creature token.
Resolve the
Chthonian Nightmare ability, returning either
Greedy Freebooter or
Impulsive Pilferer from your graveyard to the battlefield.
Activate the Eldrazi Spawn by sacrificing it, adding ({C} magic symbol) .
Activate the Treasure by tapping and sacrificing it, adding ({B} magic symbol) .
Repeat.