Cast Sea Gate Stormcaller by paying {1}{U}.
When Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Cast Twinflame by paying {1}{R}, targeting Sea Gate Stormcaller.
Sea Gate Stormcaller and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure token.
Resolve the Sea Gate Stormcaller trigger, copying Twinflame, with the copy targeting Sea Gate Stormcaller.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of Twinflame, creating a token copy of Sea Gate Stormcaller with haste.
When the token Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Holding priority, activate two Treasures by tapping and sacrificing them, adding {U}{U}.
Cast Narset's Reversal by paying {U}{U}, targeting Twinflame.
Sea Gate Stormcaller and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure token.
Resolve the Sea Gate Stormcaller trigger, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of Narset's Reversal, returning the original Narset's Reversal to your hand and creating a copy of Narset's Reversal targeting Twinflame.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Narset's Reversal copy, returning Twinflame to your hand and creating a copy of Twinflame targeting Sea Gate Stormcaller.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Twinflame copy, creating a token copy of Sea Gate Stormcaller with haste.
When the token Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Activate two Treasures by tapping and sacrificing them, adding {1}{R}.
Repeat from step 3.

Infinite ETB

Infinite colored mana

Infinite storm count

Infinite creature tokens with haste

Infinite magecraft triggers

Infinite Treasure tokens

Infinite LTB

Storm-Kiln Artist

Sea Gate Stormcaller

Twinflame

Narset's Reversal

Activate an Island by tapping it, adding {U}.
Cast Sea Gate Stormcaller by paying {1}{U}.
Sea Gate Stormcaller enters the battlefield, causing you to copy the next instant or sorcery spell you cast this turn with mana value two or less.
Cast High Tide by paying {U}.
Sea Gate Stormcaller triggers, copying High Tide.
Resolve both High Tides, adding an additional {U}{U} whenever you tap an Island for mana this turn.
Activate a Forest Island by tapping it, adding {G}.
High Tide triggers twice, adding {U}{U}.
Cast Snap by paying {1}{U}, returning Sea Gate Stormcaller to your hand and untapping two Forest Islands you control.
Activate both Forest Islands by tapping them, adding {G}{G}.
High Tide triggers four times, adding {U}{U}{U}{U}.
Cast Sea Gate Stormcaller by paying {1}{U}.
Sea Gate Stormcaller enters the battlefield, causing you to copy the next instant or sorcery spell you cast this turn with mana value two or less.
Cast Eternal Witness by paying {1}{G}{G}.
Eternal Witness enters the battlefield, returning Snap from your graveyard to your hand.
Cast Snap by paying {1}{U}, targeting Eternal Witness.
Sea Gate Stormcaller triggers, copying Snap, with the copy targeting Sea Gate Stormcaller.
Resolve the copy of Snap, returning Sea Gate Stormcaller to your hand and untapping two Forest Islands you control.
Activate both Forest Islands by tapping them, adding {G}{G}.
High Tide triggers four times, adding {U}{U}{U}{U}.
Resolve the original Snap, returning Eternal Witness to your hand and untapping two Forest Islands you control.
Repeat from step 12.

Infinite mana lands you control can produce

Infinite untap of lands you control

Eternal Witness

Yavimaya, Cradle of Growth

High Tide

Snap

Cast Sea Gate Stormcaller by paying {1}{U}.
When Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Cast Molten Duplication by paying {1}{R}, targeting Sea Gate Stormcaller.
Sea Gate Stormcaller and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure token.
Resolve the Sea Gate Stormcaller trigger, copying Molten Duplication, with the copy targeting Sea Gate Stormcaller.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of Molten Duplication, creating a token copy of Sea Gate Stormcaller with haste.
When the token Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Holding priority, activate two Treasures by tapping and sacrificing them, adding {U}{U}.
Cast Narset's Reversal by paying {U}{U}, targeting Molten Duplication.
Sea Gate Stormcaller and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure token.
Resolve the Sea Gate Stormcaller trigger, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of Narset's Reversal, returning the original Narset's Reversal to your hand and creating a copy of Narset's Reversal targeting Molten Duplication.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Narset's Reversal copy, returning Molten Duplication to your hand and creating a copy of Molten Duplication targeting Sea Gate Stormcaller.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Molten Duplication copy, creating a token copy of Sea Gate Stormcaller with haste.
When the token Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Activate two Treasures by tapping and sacrificing them, adding {1}{R}.
Repeat from step 3.

Infinite sacrifice triggers

Infinite death triggers

Molten Duplication

Cast Sea Gate Stormcaller by paying {1}{U}.
When Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Cast Three Steps Ahead by paying {U} plus an additional {3} to select its second mode, targeting Sea Gate Stormcaller.
Sea Gate Stormcaller and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure token.
Resolve the Sea Gate Stormcaller trigger, copying Three Steps Ahead, with the copy targeting Sea Gate Stormcaller.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of Three Steps Ahead, creating a token copy of Sea Gate Stormcaller with haste.
When the token Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Holding priority, activate two Treasures by tapping and sacrificing them, adding {U}{U}.
Cast Narset's Reversal by paying {U}{U}, targeting Three Steps Ahead.
Sea Gate Stormcaller and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure token.
Resolve the Sea Gate Stormcaller trigger, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of Narset's Reversal, returning the original Narset's Reversal to your hand and creating a copy of Narset's Reversal targeting Three Steps Ahead.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Narset's Reversal copy, returning Three Steps Ahead to your hand and creating a copy of Three Steps Ahead targeting Sea Gate Stormcaller.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Three Steps Ahead copy, creating a token copy of Sea Gate Stormcaller with haste.
When the token Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less.
Activate four Treasures by tapping and sacrificing them, adding {3}{U}.
Repeat from step 3.

Infinite creature tokens

Three Steps Ahead

Cast Sea Gate Stormcaller by paying {1}{U}.
Sea Gate Stormcaller enters the battlefield, copying the next instant or sorcery spell you cast with mana value two or less.
Cast Unsubstantiate by paying {1}{U}, targeting Sea Gate Stormcaller.
Sea Gate Stormcaller, Orvar, and Storm-Kiln Artist trigger.
Resolve the Sea Gate Stormcaller trigger, 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 Orvar trigger, creating a token copy of Sea Gate Stormcaller.
The Sea Gate Stormcaller token enters the battlefield, copying the next instant or sorcery spell you cast with mana value two or less.
Resolve the Storm-Kiln Artist trigger from step 4, creating a Treasure token.
Activate both Treasure tokens by tapping and sacrificing them, adding {U}{U}.
Repeat from step 3.

Orvar, the All-Form

Unsubstantiate

Combos with "Sea Gate Stormcaller"