Fire Lord Azula + Narset's Reversal + Tidal Barracuda + Alchemist's Gambit

Fire Lord Azula

Narset's Reversal

Tidal Barracuda

Alchemist's Gambit

How it works

1. Declare Fire Lord Azula as an attacker, triggering its firebending ability, adding .
2. Holding priority, cast Alchemist's Gambit by paying its cleave cost.
3. Fire Lord Azula's second ability triggers, copying Alchemist's Gambit.
4. Holding priority, cast Narset's Reversal by paying , targeting the original Alchemist's Gambit spell.
5. Fire Lord Azula's second ability triggers, copying Narset's Reversal, targeting the original Narset's Reversal.
6. Resolve the copy of Narset's Reversal, causing you to copy Narset's Reversal targeting the original Alchemist's Gambit spell, and then return the original Narset's Reversal to your hand.
7. Resolve the copy of Narset's Reversal, copying Alchemist's Gambit and returning the original Alchemist's Gambit to your hand.
8. Resolve both copies of Alchemist's Gambit from steps 3 and 7, causing you to take two extra turns after this one.
9. Repeat during your second extra turn.