One of the best support and mobile champion.
She can easily escape and slow down enemys.
Nice ulti, if used correctly it can disable whole team.

Maxing out EYE OF THE STORM is crucial. If you lane with range champion you can start with HOWLING GALE, and still max out EYE OF THE STORM at lv 9.

At first we start with mana regen, she is hungry at start if u cast often HOWLING GALE.
Tear of the Goddess gives you additional mana, we shuld get it asap so we can start incresing mana pool. Bonus caps at 1000, you also keep mana bonus on Archangel's Staff.
With all the items and talents you get exactly 40% Cooldown reduction ( Cd caps at 40%), whic is one of most powerful stat as support so you can spam EYE OF THE STORM.
Aegis of the Legion is must item for a team (http://leagueoflegends.wikia.com/wiki/Aegis_of_the_Legion)
Later is cool to add AP so shield increses (EYE OF THE STORM) and heling done by ulti.

Pros
-Fast, she can easly escape
-Long range attach, can interrupt casting spells
-Shield
-With ulti is really helpfull in team fights, if you manage to disable few champions (Flash helps, it can throw champions over clffs)
Cons
-Low dps
-Depends on others and team play

Lane with melee champion like Jax and Pantheon. EYE OF THE STORM on lv 5. adds 50 attack and last 5s independently of shield. (Try on yourself, you will see that you gain two buffs)
Try to keep at least two wards one at BARON and other by DRAGON

I really don't play that build often, only in case i lock champion and then realize we got two supports. It's very squishy, but shield (EYE OF STORM) and heling done by MONSOON increases dramatically and in some cases its worth it. You shuld try it out at least once, i like it more that original but you need to stay behind team all game long and make sure no one can ambush you.( Katarina, Akali, Master Yi and others over feed DPS)