Ah Cab Ultimate damage!

You should consider adding a bit more detail into your guide if you want people to take it more seriously. Simply stating your opinion with no detail to support it doesn't make for a good guide. At most, this would be more of a build guide than an actual guide.

As for your items, I can't say I recommend meditation. While AMC does go through mana like its water, there are better ways to handle the consumption rather than wasting an active slot. You should take a look at Bluestone Pendant. Its a starter item that restores 4% of your missing mana every 5 seconds. If you want power, try building Transcendence as soon as you can. At level 20 with full stacks, trans can easily give you 97 physical power on its own.