When you use Mystic Reversal to take control of a spell with reflexive triggers (like Icathian Rain or Falling Star) and target a unit with Deflect, do you have to pay the Deflect costs?

Ruling: When you steal a spell with reflexive triggers using Mystic Reversal, you do not pay Deflect costs for the original spell itself (which already paid costs and targeted). However, you DO pay Deflect costs for any reflexive triggers created when the stolen spell resolves, because those are new items being added to the chain that require targeting for the first time.

Nuances:

• This applies specifically to spells that create reflexive triggers (like Icathian Rain, Falling Star, and the second target for Dragon's Rage)
• For regular spells without reflexive triggers, you do not pay Deflect costs when stealing them with Mystic Reversal, as they have already paid costs and gone through targeting
• The reflexive triggers are created during the stolen spell's resolution, at which point you are targeting for the first time