As playng Ryze Solo top you will need a bit of armor,magic resistand ability power.
Armor-for the minions attacks and for the enemy auto attacks
Magic Resist-in chase that the opponent in solo top it s a mage
Ability Power-for your spells

On plaiyng Ryze solo top you start with saphire crystal and potions. The saphire crystal helpes you a lot with the ,,Q,, farming.after finished your boots buy tear of godness and you will absolute R>A>P>E by farming your q.After that build archangell staff for more ap and mana.
Make youreself resistant with rod of ages and take ap with rapadon
Rylay will help you to stay more time in combat and slow all the enemy team with your ulti.
will of the ainchents helpes you stay on lane even low healthed.

FARM a lot with ryze s q and e.MAx your w for the ganks and you will r.a.p.e