Cast Bond of Insight by paying ({3} magic symbol) ({U} magic symbol) .
Storm-Kiln Artist triggers, creating a Treasure artifact token.
Holding priority, activate the Treasure by tapping and sacrificing it, adding ({U} magic symbol) .
Cast Twincast by paying ({U} magic symbol) ({U} magic symbol) , targeting Bond of Insight.
Storm-Kiln Artist triggers, creating a Treasure artifact token.
Resolve the copy of Twincast, copying Bond of Insight.
Storm-Kiln Artist triggers, creating a Treasure artifact token.
Resolve the copy of Bond of Insight, causing each player to mill four cards and return Twincast and any other instant or sorcery from your graveyard to your hand.
Activate the Treasures by tapping and sacrificing them, adding ({U} magic symbol) ({U} magic symbol) .
Repeat from step 4.
Results
Infinite magecraft triggers.
Infinite mill.
Infinite self-mill.
Infinite storm count.
Put all instant and sorcery cards from your graveyard and library into your hand.