Gluttonous Ooze is an Un’Goro card, so this deck won’t be allowed in Standard. Maybe just replace it with Acidic Swamp Ooze?

You could definitely run that instead, especially if you find yourself needing the extra board clear. I kept matching against Cubelock, and evolving my low-cost minions with Thrall, Deathseer helped me keep up enough pressure to punch through their defenses.

Have you thought about Elise the Trailblazer in this deck? It’s odd, and the upgraded hero power makes it way easier to get the pack. Plus, it delays fatigue by one turn while potentially giving some great late-game value.