I thought shrines were supposed to always stay in play, and if they tried to bounce back to hand, they would instead die and resurrect several turns later. Freezing trap completely removed Akali’s Champion from play and the shrine never came back (even on following turns). I have a video of the event if needed for further clarity, but for obvious reasons can’t share. Freezing trap was the only secret that was triggered that turn by me, and Akali’s Champion was the only minion I had available to attack.