Herigast, Erupting Nullkite | Myr Retriever | Junk Diver

(and two other cards)

Cast
Myr Retriever for its emerge cost by paying ({0} magic symbol) and sacrificing
Workshop Assistant.
Glaring Fleshraker's first ability and
Workshop Assistant trigger.
Resolve the
Glaring Fleshraker trigger, creating a 0/1 Eldrazi Spawn creature token.
Resolve the
Workshop Assistant trigger, returning
Junk Diver from your graveyard to your hand.
When
Myr Retriever enters the battlefield,
Glaring Fleshraker's second ability triggers, dealing 1 damage to each opponent.
Activate an Eldrazi Spawn by sacrificing it, adding ({C} magic symbol) .
Cast
Junk Diver for its emerge cost by paying ({1} magic symbol) and sacrificing
Myr Retriever.
Glaring Fleshraker's first ability and
Myr Retriever trigger.
Resolve the
Glaring Fleshraker trigger, creating a 0/1 Eldrazi Spawn creature token.
Resolve the
Myr Retriever trigger, returning
Workshop Assistant from your graveyard to your hand.
When
Junk Diver enters the battlefield,
Glaring Fleshraker's second ability triggers, dealing 1 damage to each opponent.
Cast
Workshop Assistant for its emerge cost by paying ({0} magic symbol) and sacrificing
Junk Diver.
Glaring Fleshraker's first ability and
Junk Diver trigger.
Resolve the
Glaring Fleshraker trigger, creating a 0/1 Eldrazi Spawn creature token.
Resolve the
Junk Diver trigger, returning
Myr Retriever from your graveyard to your hand.
When
Workshop Assistant enters the battlefield,
Glaring Fleshraker's second ability triggers, dealing 1 damage to each opponent.
Repeat.