@DAM20 Don't think it is the best response to that. Realistically it's a turn 5 drop the majority of the time and Saheeli + Felidar can go infinite at any time turn 4 or later. For turn 3 you need to be able to cast
reverse engineer on turn two and draw into the right stuff. If you end up fighting that combo you definitely need to sideboard some cheaper counterspells to stall for a little. I'll add that to my suggested sideboard