As singed, Level 11 is a decent power spike as he will have another point in his Ultimate n. His overall damage dealt will increase, along with his resistances.

At level 9, his l will be maxed out. This means that he can deal a lot of consistent DPS during team fights if he manages to not get CC'd.

His tankiness will be really high, mainly if he uses his Ultimate n. It will allow him to do his primary job of running circles around the enemy team with his l.         As singed, Level 11 is a decent power peak because it will have another point in its Ultimate n. Its overall damage will be increased, with its resistances. At level 9, its l will be maximized. This means that it can make a lot of consistent DPS during the team fights if it succeeds in not getting CC'd. Its tankness will be really high, mainly if it uses its Ultimate n. This will allow it to do its main job to run circles around the enemy team with its l.