Thank you for your valuable input, tmd always appreciates high quality posts.
On behalf of your suggestion: it is bad, unfortunately.
I was being serious: people have suggested setting up 4 Time Walks in a row using that card. The problem is that you 5-for-1 yourself as an additional cost of taking some extra combat phases. It's also considerably less awful when paired with the Wheel of Fortune rehash since you empty your current hand to set up your next hand. That makes Insidious Dreams a considerably better Ad Nauseam...if you're certain it won't get countered and your deck won't get shuffled.