Fire Lord Azula | Narset's Reversal | Tidal Barracuda

(and one other card)

Narset's Reversal and
Karn's Temporal Sundering in hand.
Fire Lord Azula and
Tidal Barracuda on the battlefield (
Fire Lord Azula without summoning sickness).

({2} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) each other turn available.

Declare
Fire Lord Azula as an attacker, triggering its firebending ability, adding ({R} magic symbol) ({R} magic symbol) .
Holding priority, cast
Karn's Temporal Sundering by paying its mana cost.
Fire Lord Azula's second ability triggers, copying
Karn's Temporal Sundering.
Holding priority, cast
Narset's Reversal by paying ({U} magic symbol) ({U} magic symbol) , targeting the original
Karn's Temporal Sundering spell.
Fire Lord Azula's second ability triggers, copying
Narset's Reversal, targeting the original
Narset's Reversal.
Resolve the copy of
Narset's Reversal, causing you to copy
Narset's Reversal targeting the original
Karn's Temporal Sundering spell, and then return the original
Narset's Reversal to your hand.
Resolve the copy of
Narset's Reversal, copying
Karn's Temporal Sundering and returning the original
Karn's Temporal Sundering to your hand.
Resolve both copies of
Karn's Temporal Sundering from steps 3 and 7, causing you to take two extra turns after this one.
Repeat during your second extra turn.