You could go for the more damage build or for the more tankier build, it's better to choose the more tankier build if your the only tank on your team. If your the second or third tank on your team I would recommend to go the more damage build.

I would recommend maxing Q first, then W, then E. Because you'll need the damage with this build, and the shield also makes you alot stronger in a 1v1. But if your against an ranged champion, I would recommend maxing E first, for the poke damage. It also depends on what for build your going for, if you go for the more tankier build, I would recommend to max W atleast second or maybe first. If you go the more damage build I would recommend to max Q and then W, for more damage.

I would recommend to go: 0/12/18 but, you can also go: 12/0/18, it depends if you go for more damage or more sustain and movement.

I would recommend to mostly go defensive runes, but you could also take more damage runes.