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Any advice on how you would tweak it to make it better?

I personally don't like mask of madness to begin with. Upgrading shadowblade to silver edge is an option to consider - it will help you break tanky opponents. Moonshard is really an Ultralategame Item, but I see someone else already mentioned it. But don't worry too much about builds quite yet. Just keep grinding and you will naturally improve :)

Thank you for sharing your thoughts :)