Not Updated For Current Season
This is my guide for sona.
As you can see below it works :P
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The main thing is to support your allies.
Try to place your ulti right if they wanna gank allies.
And keep spamming your heal.
Boots of swiftness --> for early movement.
Rod of ages --> for the hp and ap and this way it can load all of its passive
Spirit visage --> for the buff heal on yourself and the hp
Innervating locket --> for the hp and nice passive ofc :P after this item you are amazing
Zhonya's ring --> for the ap ofc :P to boost your heals
Soul shroud --> for the hp and cd reduction so you can spam more heals :P
Just try it out and i will see ya comments :P
And plz before you do a -1 give me a comment :P