Orvar, the All-Form | Storm-Kiln Artist | Dualcaster Mage

(and one other card)

Cast
Unsubstantiate by paying ({1} magic symbol) ({U} magic symbol) , targeting
Dualcaster Mage.
Orvar, and
Storm-Kiln Artist trigger.
Resolve the
Orvar trigger, creating a token copy of
Dualcaster Mage.
The
Dualcaster Mage token enters the battlefield, copying
Unsubstantiate, targeting the original
Unsubstantiate.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of
Unsubstantiate, returning the original
Unsubstantiate to your hand.
Resolve the
Storm-Kiln Artist trigger from step 2, creating a Treasure token.
Activate both Treasure tokens by tapping and sacrificing them, adding ({U} magic symbol) ({U} magic symbol) .
Repeat.