By fueling your strategy with the extra turn granted by Walk the Aeons, you set the stage for Kiki-Jiki, Mirror Breaker to unleash its duplication magic. Tapping Kiki-Jiki, Mirror Breaker creates a token copy of Possessed Skaab, whose entry trigger neatly scoops Walk the Aeons right back out of your graveyard and into your hand. Although Possessed Skaab's replacement effect normally exiles it if it would die, Kiki-Jiki, Mirror Breaker's created token neatly sidesteps any permanent graveyard locking issues by letting you endlessly repeat the loop on subsequent turns.