Maze's End Suggestions?

So I want to build Maze's End for standard just for gits before it rotates, to play at local FNMs. I don't want to dump a ton into it, just want to make a budget version, and I was looking for suggestions for the flex/board slots. I'm playing the turbo-fog version, and I have most of the deck built on my profile, but some of the flex options are still open, as is most of the sideboard. If you guys could give me some suggestions, both in general, and based on what I already have listed, that would be appreciated. Also looking for some of the cards like Abrupt decay, Supreme verdict, and detention sphere. Thanks!