... these handsome Ultra•PRO deck boxes, designed specifically for Planechase? The front of the box is divided into two spots for sixty-card decks, and there's a rear compartment sized just right to hold oversized cards in sleeves.
What? In sleeves? Yes, each of these comes with a pack of sixty regular sleeves and ten oversized sleeves. Perfect!
While we're on the Ultra•PRO subject, check this out!
That should nicely handle all of your Duel Decks: Garruk vs. Liliana storage needs!