At the beginning of your combat phase, Rionya triggers, creating at least two token copies of Storm-Kiln Artist.
Move to your post-combat main phase.
If Maestros Charm is in your hand, cast it by paying {U}{B}{R}.
Otherwise, cast it from your graveyard for its escape cost by paying {U}{B}{R} and exiling three cards from your graveyard, ensuring not to exile Jace if it is in your graveyard.
Each Storm-Kiln Artist triggers, creating at least three Treasure tokens.
Resolve Maestros Charm, causing you to look at the top five cards of your library, put one of them in your hand and put the rest into your graveyard.
If you don't have an empty library, activate three Treasure tokens by tapping and sacrificing them, adding {U}{B}{R}.
Repeat from step 4 until you have an empty library.
If Jace is not on the battlefield, activate three Treasure tokens by tapping and sacrificing them, adding {U}{U}{U}.
If Jace is in your hand, cast it by paying {1}{U}{U}{U}.
If Jace is in your graveyard, cast it for its escape cost by paying {1}{U}{U}{U} and exiling three cards from your graveyard.
Activate Jace's first loyalty ability by putting a loyalty counter on it, causing target player to mill two cards and you to win the game due to drawing from an empty library.

Infinite self-mill

Near-infinite magecraft triggers

Near-infinite storm count

Win the game

Maestros Charm

Underworld Breach

Storm-Kiln Artist

Rionya, Fire Dancer

Jace, Wielder of Mysteries

At the beginning of your combat phase, Rionya triggers, creating at least two token copies of Storm-Kiln Artist.
Move to your post-combat main phase.
If Maestros Charm is in your hand, cast it by paying {U}{B}{R}.
Otherwise, cast it from your graveyard for its escape cost by paying {U}{B}{R} and exiling three cards from your graveyard, ensuring not to exile Thassa's Oracle if it is in your graveyard.
Each Storm-Kiln Artist triggers, creating at least three Treasure tokens.
Resolve Maestros Charm, causing you to look at the top five cards of your library, put one of them in your hand and put the rest into your graveyard.
If you don't have an empty library, activate three Treasure tokens by tapping and sacrificing them, adding {U}{B}{R}.
Repeat from step 3 until you have an empty library.
Activate two Treasure tokens by tapping and sacrificing them, adding {U}{U}.
If Thassa's Oracle is in your hand, cast it by paying {U}{U}.
Otherwise, cast it for its escape cost by paying {U}{U} and exiling three cards from your graveyard.
Thassa's Oracle enters the battlefield, causing you to win the game.

Thassa's Oracle

Combos with "Maestros Charm"