[{quoted}](name=Arf Arf Arf Arf,realm=OCE,application-id=3ErqAdtq,discussion-id=AVIWzUcd,comment-id=0001,timestamp=2016-01-26T12:38:43.249+0000)
Her W gives you and your ally half a Janna shield each AND heals you both for half a Soraka heal.
Intentionally posting false numbers doesn't work. Literally anyone can check what you're saying and see that it's untrue.
Janna's shield is 80 points, lasts 5 seconds and gives bonus AD. Sona's "shield" is 35 points(less than your claim of "half"), lasts an unusably short 1.5 seconds and is melee-range. Both are on the same cooldown, but Janna's costs less mana.
Lol, what even? Sona is literally the worst healer in the game and you want to compare her to Soaraka, the best healer? Soraka's heal starts at 120 on a 4 second cooldown, to Sona's 30 at 10 seconds and then Soraka's continues to shorten with rank.
When used at the right time, her W power chord can make a huge difference in a fight. For example, if a Zed or Fizz jumps in, you can W power chord for a mini-exhaust damage reduction.
The problem with using any Power Chord other than Staccato: the cooldowns on her spells are markedly staggered because Fearless decided to intentionally nerf her when PBE complained her CD nerfs before that were already too severe. So why not make them worse by screwing over her passive as well? This single nerf directly led to the Q-bot playstyle she has and the under-usage of Tempo and Diminuendo.
Similarly, her E is not to be underestimated for chasing or kiting. It's really hard to escape from a Sona, especially if she E power chords you. It's excellent for disengage too if you're caught in a less than favourable fight (ult plus E to help team escape).
Her E is one of the worst mobility spells amongst supports and one of the weakest MS increases. Take into addition its long CD, her unjustified base MS nerf that even Sona haters like yourself were confused about and its melee cast-range, it becomes arguably just as bad a spell as Aria, despite having the highest return-per-cast. As for Tempo? Refer to my above explanation regarding Diminuendo.
Finally, her ult - AOE burst stun. What more is there to say?
Her ult is one of the shortest-ranged, longest-CD and weakest CC amongst support champs. It's completely outclassed by most of the class, particularly Annie who Aphromoo personally stated replaced Sona as THE GO-TO Flash+Ult engage support.
Yes, in the early game Q is prioritised for that sick harass. But in the mid-late game her entire kit is useful if used correctly.
Sona's kit is garbage at every point of the game, including Hymn of Valor. Without relying on damage, she's a useless champ. Without relying on artificial numbers from Spellblade/Echo, she does negligible damage. Lich and Echo are not support items and without them her winrate falls below 40%. However, these are items that can be built on literally ANY champion. There's not a single situation you should ever play Sona over ANY mage, as any champ can buy those same items and completely outperform her.
Don't just take my word for it, go ahead and listen to someone that was considered the best Sona player worldwide for 3 seasons in a row:
http://boards.na.leagueoflegends.com/en/c/gameplay-balance/lGqOpxEQ-sona-was-overnerfed-and-now-has-a-38-50-win-ratio-in-real-elo
http://boards.na.leagueoflegends.com/en/c/gameplay-balance/GsEb7A8w-no-seriously-who-the-hell-thought-sona-needed-a-nerf?comment=00000000
http://boards.na.leagueoflegends.com/en/c/gameplay-balance/FiME8n7M-riot-can-you-please-explain-the-reasons-on-why-you-nerfed-sona-again-on-pbe?comment=0005