This build is designed for Sona to be able to dish out early to mid game damage, while healing and having alot of mana regen to be persistant in her lane while late game being great support with 40% cd and massive mana regen aswell decent level of ability power, hence 2 mekai pendants off the bat. my personal build, this works great for me and maybe it will for you aswell, start with a mekai pendant no health pot, as soon as you have 390+350 you can recall and buy another mekai pendant and boots, with 2 mekai pendants this early you will have very good mana regen which should allow you to persistantly cast valor and perservance, late game she will have 40% cd and nearly infinite mana. the rylai's staff will slow enemies for your team to take down or to help escape from chasing enemies, the 6th item is really just circumstantial I will name the 3 items i use most in this slot, abyssal sceptor/moonflair spellblade/Zhonya's hourglass. she allready has low cooldowns save her ult, but with the mana regen and 40% cd reduction she can q,w,e all day almost non stop throughout the entire game Very fast and her ult is down alot faster aswell. that is pretty much all there is to it, it's a simple build, good luck and have fun. ((p.s. this is my 2nd buld on my first day as a member of mobafire I know it's not really thorough/complete I will add to it in all likeliness, please let me know if you enjoyed it or if you have suggestions to make alterations and explain why/reasoning. good luck have fun.))