Body Launderer | Spark Double | Clever Impersonator

(and one other card)

Spark Double in your graveyard.
All other permanents on the battlefield (
Clever Impersonator as a copy of
Body Launderer).

Activate
Phyrexian Altar by sacrificing
Clever Impersonator, adding one mana of any color.
Clever Impersonator dies, triggering its second ability and
Body Launderer's first ability.
Resolve the
Clever Impersonator trigger, returning
Spark Double from your graveyard to the battlefield as a copy of
Body Launderer.
Resolve the
Body Launderer trigger, causing it to connive.
Activate
Phyrexian Altar by sacrificing
Spark Double, adding one mana of any color.
Spark Double dies, triggering its second ability and
Body Launderer's first ability.
Resolve the
Spark Double trigger, returning
Clever Impersonator from your graveyard to the battlefield as a copy of
Body Launderer.
Resolve the
Body Launderer trigger, causing it to connive.
Repeat.