Well this seems to work really well only once you get the runes. Early on you do really good dmg with your spear. I mean really really good dmg. you should be able to get a kill by lvl 3 assuming of course the person your laneing with isn't an idiot. Your no kinda tank so remember this, lead with ignite then a spear shot and a stun and an attack then another spear early on. once your higher lvl go ignite, spear, stun, attack then strike. this usually will do a ton of dmg with some auto attacks and another spear shot you pretty much have them dead. you cant really fight tanks so don't bother, you can harass them pretty well with your spear. if they drop low enough go for the attack.

The crit and the armor pen is huge, this really takes down the squishys. everything else helps but only a little. this build works for me.

From what i can tell you dont really run in and go blow for blow. you need to make sure you lay on all your dmg with your ability's. i normally dont ever get to the armor part of the build but when you do it really helps. the thorn will counter any fast attack criter. so id get that first. The veil is good for casters, helps you not get stunned with your passive. but chances are you'll never get that far, i did only a few times and ive played with him alot.

I get the skills in this order cuz hes seriously all about his spear early only till like 12 or so. your strike sucks until you get more dmg on ya. the stun is only that and nothing else. your skyfall is really really tricky, they can see it and usually move outa the way. you can use it to drop down in confusion. if you run into a fight thats a 3v3, 4v4 or 5v5, try and drop it right away if your teams losing it could turn the tides, if your winning it will get you at least one kill. skyfall is tricky, fails most of the time, they either move oura the way or the fights over by the time it falls thats why you wanna do it fast. its also good to drop in and finish someone off by a turret. make sure you have your shield on to absorb the tower shot and your flash to get outa there once you get the kill.

Pros.
good early dmg.
good harasser.
good burst dmg.

cons.
cant solo too well.
bad against tanks.
not great at getting away from gank.

should be in a group more often then not. great with support. love sona. always spear maybe a spear then a stun then backing off and doing it again. really good at jumping in and laying on masive group dmg late game. runes help you not die too fast.