This is the other direction I could see Zilean going in: since he's so cheap, just keep replaying him to load up your deck with Time Bombs. Homecoming feels especially great: for 6 mana, you can removing an enemy while either saving your Zilean or shadow-blocking AND then replay him to shuffle an additional 4 bombs into your deck.

The one thing I don't like is that this approach lacks a true win condition. I was originally thinking about Taliyah, but I didn't want to just make another Zilean + Taliyah deck splashing a different color. I included Khahiri the Returned because of all the predicts, but it feels like there'll be an anti-synergy if you're simultaneously mass-shuffling timebombs into your deck. Hopefully Irelia fills this gap.