Using this combo, a friend contested how I was playing it. With Children of Korlis in play, I play Ad Nauseam starting with 40 life. I draw down to 9 life, sacrifice Korlis, go back to 40 life and continue Nauseum down to 26. My friend seems to think once I sacrifice Korlis, I couldn’t continue with Nauseum. Is he correct?
Yes, your fiend is correct, you cannot do that. Ad Nauseam lets you repeat the process so long as it is resolving. And as long at it does, you don't have priority to activate abilities. If you want to activate Children of Korlis, you have to let Ad Nauseam finish resolving, meaning, you have to end the repetition it offers. You cannot pick it up again.
Former Rules Advisor
"Everything's better with pirates." - Lodge
(The Gamers: Dorkness Rising)
"Any sufficiently analyzed magic is indistinguishable from science."
(Girl Genius - Fairy Tale Theater Break - Cinderella, end of volume 8)