Also, MP5 or MP5/lvl would probably be more efficient seals to use. You also did not specify summoner spells, I would recommend, flash and ingnite. Flash is good since malz does not have an escape tactic, and ignite works well with MZ.

Very similar to the build I used to use, but RoA is not worth its cost in the end, and by the time you get the Scepter 500 health will probably not be worth that much. If you want it for the slow, it would help, but personally i think a better AP item to allow more damage at once would be a lot more useful.