Knee Gatling's static effect reads:
"After you add this card to your momentum during your End Phase, add X cards from the top of your deck to your momentum. X equals the difference between your momentum and your opponent's momentum."
Let's say that my opponent hits me with a reversal after partially blocking my Knee Gatling. I then follow up by playing two more attacks- both of which deal damage.
When it's time to add cards to momentum, *when* does Knee Gatling's momentum-grabbing ability kick in? Is it before my opponent has an opportunity to put their reversal into their momentum, or do these occur simultaneously?
I apologize if this has already been covered (my guess is that it probably has).
Thanks,
-Tuggs