Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
With this build your lane parter gets first blood 80% of the games. Always keep only in the range of the heal and stun and not of the attacker.
Summoner Spells Explanation:
Clarity: You will only need this in early game when you will have mana problems, but when you get Archangel's Staff you will have no more problems with mana.
Flash: The flash is basic, its to get out of a gank and run while healing and stunning the ones behind (Activate your ulti while running from 2+ enemys) and to when an enemy is like half HP and you and your lane partner sees him running you just flash forward and stun his ***.
PLEASE NOTICE that this build is for healing and stunning, in end game your stun will make 1200 + 800AOE (Shatter) Damage and you will heal for more than 1000 in less than 10 secs, also make sure that while in team fights you dont get in the middle and has possibly be auto-attacking something so your CD of Imbue gets reduced. With this you will guarantee your team-mates life. You will not kill with this build, my scores are usually 2/1/15 etc.