Invoke Calamity + Narset's Reversal + Swarm Intelligence

Prerequisites

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Steps

1. 1Cast Invoke Calamity by paying .
2. 2Swarm Intelligence triggers, copying Invoke Calamity.
3. 3Resolve the Invoke Calamity copy, casting Narset's Reversal without paying its mana cost.
4. 4Swarm Intelligence triggers, copying Narset's Reversal targeting the original Narset's Reversal.
5. 5Resolve the copy of Narset's Reversal, copying Narset's Reversal targeting Invoke Calamity and returning the original Narset's Reversal to your hand.
6. 6Resolve the Narset's Reversal copy, copying Invoke Calamity and returning the original Invoke Calamity to your hand.
7. 7Resolve the Invoke Calamity copy, casting Invoke Calamity without paying its mana cost.
8. 8Repeat from step 2.
9. 9You may also choose to cast any number of instants or sorceries from your hand or graveyard with mana value 4 or less without paying their mana costs during step 3.

Effects

• Cast all instants and sorceries with mana value 4 or less from your hand and graveyard
• Infinite magecraft triggers
• Infinite storm count