Cast Walk the Aeons by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Walk the Aeons.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Walk the Aeons, and returning the original Narset's Reversal to your hand.
Resolve Walk the Aeons, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Infinite turns

Lock

Karador, Ghost Chieftain

Slick Imitator

Narset's Reversal

Walk the Aeons

Cast Time Warp by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Time Warp.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Time Warp, and returning the original Narset's Reversal to your hand.
Resolve Time Warp, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Time Warp

Cast Time Walk by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Time Walk.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Time Walk, and returning the original Narset's Reversal to your hand.
Resolve Time Walk, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Time Walk

Cast Temporal Manipulation by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Temporal Manipulation.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Temporal Manipulation, and returning the original Narset's Reversal to your hand.
Resolve Temporal Manipulation, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Temporal Manipulation

Cast Capture of Jingzhou by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Capture of Jingzhou.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Capture of Jingzhou, and returning the original Narset's Reversal to your hand.
Resolve Capture of Jingzhou, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Capture of Jingzhou

Cast Nexus of Fate by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Nexus of Fate.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Nexus of Fate, and returning the original Narset's Reversal to your hand.
Resolve Nexus of Fate, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Nexus of Fate

Cast Beacon of Tomorrows by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Beacon of Tomorrows.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Beacon of Tomorrows, and returning the original Narset's Reversal to your hand.
Resolve Beacon of Tomorrows, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Beacon of Tomorrows

Cast Rise of the Eldrazi by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Rise of the Eldrazi.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Rise of the Eldrazi, and returning the original Narset's Reversal to your hand.
Resolve Rise of the Eldrazi, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Rise of the Eldrazi

Cast Part the Waterveil by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Part the Waterveil.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Part the Waterveil, and returning the original Narset's Reversal to your hand.
Resolve Part the Waterveil, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

Part the Waterveil

Cast Karn's Temporal Sundering by paying its mana cost.
Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Karn's Temporal Sundering.
Holding priority, activate Slick Imitator by paying {1} and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Karn's Temporal Sundering, and returning the original Narset's Reversal to your hand.
Resolve Karn's Temporal Sundering, causing you to take an extra turn after this one.
Cast Slick Imitator from your graveyard by paying {1}{U}.
Repeat each turn.

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