Opinions on this Ryze build?

This is my Ryze top build against non squishy lanes. Please judge it.

The idea is to be a more tanky Ryze, designed for in and out of combat. Between the Rabadons and the Muramana, his passive is fully utilized instead of with a Seraphs. Ryze can be more dependent on his combos that give him a double rune overcharge. Because of Muramana passive, he gains a lot of AD as he builds both AP and Mana, allowing him to WEQ Auto and kite back E auto and kite back E Q then repeat. His Autos would actually be rather significant in a prolonged chase or kiting. This is designed primarily to function when the team is against strong assasins or a significantly more mobile lane. Boots are more or less uneeded in the build because of Ludeens and his Q proc. Pros: Consistent DPS More chances to get of Charged Qs Your Autoes are more dangerous, worth working into combos Mixed damage, sorta FAAAAR less squishy Useful in skirmishes and especially against bruisers. (Camille Fiora Darius all of whom you can't really run away from anyway) Some bonus CDR Cons: Slightly less mobile Less burst probably can't assassinate anyone except the ADC. Potentially weak against champions with lots of escapes. Such as jax and ekko (But they already bone ryze so...)