Narset's Reversal

If the spell has damage divided as it was cast, the division can’t be changed (although the targets receiving that damage still can). The same is true of spells that distribute counters.

If you copy a spell, you control the copy. Narset’s Reversal and the copy resolve before the original spell would have resolved.

If the spell that’s copied is modal (that is, it says “Choose one —” or the like), the copy will have the same mode. A different mode can’t be chosen.

The controller of a copy can’t choose to pay any alternative or additional costs for the copy. However, effects based on any alternative or additional costs that were paid for the original spell are copied as though those same costs were paid for the copy.

If a copy of a spell is returned to its owner’s hand, it’s moved there, then it will cease to exist as a state-based action.

If a spell is returned to its owner’s hand, it’s removed from the stack and thus will not resolve. The spell isn’t countered; it just no longer exists. This works against a spell that can’t be countered.