Mulligans
General Mulligans
You can prep academic espionage turn one, then start the shenanigans early. Turn 2 shinyfinder, turn 3 coin cutlass, turn 4 backstab minstrel, turn 5 play whatever 3-4 class cards you've drawn since turn 1, and deadly poison, and you've got a game on your hands
Aggro Mulligans
Fan of knives is your only clear, so best use it wisely. Get tyrion turn 2 off of Academic Espionage. Play this card while it lasts, it will probably get nerved into the ground soon.
Control Mulligans
Get your late game cards so you can really pop off later.
Play Academic Espionage and you pretty much win. Equip spectral cutlass and grow it to an insane size with your opponent’s class cards that you draw using sprints and auctioneer, pick their pocket a few times, and double up academic espionage with Valeera. Tess Greymane is a finisher which will play all 10-20 cards you’ve played from your opponent’s class for free, which you previously played at an already insane discount. This is marked fatigue because no matter how much you draw Valeera the Hollow can put your deck to 60 cards if you didn’t play epionage early on.
EDIT: Augmented Elekk Doubles the shuffling of your Academic Espionage, doubling your potential even further to 80 1 cost cards from your opponent’s class if you double them with this and valeera!