Is this a good Zombie/DAD deck?

At least play Traditional Format if you're not playing Advanced. So, that means you'd have to take Burial down to 1, Mezuki down to 1, Allure down to 1, and COSR down to 1. Other than that, it's pretty good. You should add in 2 Book of Moon, some other banned cards (If you're playing Traditional, why not throw some in?) and a Gale. For synchros, add Armor Master and Armed Wing. I hope this helps!