Extus, Oriq Overlord // Awaken the Blood Avatar | Dualcaster Mage | Brass's Bounty

(and one other card)

Brass's Bounty in hand.
Dualcaster Mage in hand or in your graveyard.
Extus and
Phyrexian Altar on the battlefield.
You control at least three lands.
({7} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) available.

Cast
Brass's Bounty by paying ({6} magic symbol) ({R} magic symbol) .
Extus triggers, returning either
Dualcaster Mage or any other nonlegendary creature card from your graveyard to your hand.
Holding priority, cast
Dualcaster Mage by paying ({1} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Dualcaster Mage enters the battlefield, targeting
Brass's Bounty.
Activate
Phyrexian Altar by sacrificing
Dualcaster Mage, adding ({R} magic symbol) .
Resolve the
Dualcaster Mage trigger, creating a copy of
Brass's Bounty.
Extus triggers, returning
Dualcaster Mage from your graveyard to your hand.
Resolve the copy of
Brass's Bounty, creating a Treasure token for each land you control.
Activate two Treasure tokens by tapping and sacrificing them, adding ({1} magic symbol) ({R} magic symbol) .
Repeat from step 3.