Dual Nature | Balthor the Defiled | Blood Vassal

Cards

({2} magic symbol) ({B} magic symbol) ({B} magic symbol) ({B} magic symbol) available.

Cast
Balthor by paying ({2} magic symbol) ({B} magic symbol) ({B} magic symbol) .
Balthor enters the battlefield, triggering
Dual Nature's first ability, creating a token copy of
Balthor.
Put the nontoken
Balthor into your graveyard due to the legend rule.
Activate
Blood Vassal by sacrificing it, adding ({B} magic symbol) ({B} magic symbol) .
Activate the token
Balthor by paying ({B} magic symbol) ({B} magic symbol) ({B} magic symbol) and exiling it, returning all black and red creature cards from your graveyard to the battlefield.
Balthor and
Blood Vassal enter the battlefield, triggering
Dual Nature's first ability twice.
Resolve the first
Dual Nature trigger, creating a token copy of
Blood Vassal.
Activate the token
Blood Vassal by sacrificing it, adding ({B} magic symbol) ({B} magic symbol) .
Resolve the second
Dual Nature trigger, creating a token copy of
Balthor.
Repeat from step 3.