Abilities of Lulu
Spell skill priority is an important winning factor for Lulu. Understanding the abilities of Lulu in League of Legends is another. Below you can find all the relevant information on Lulu abilities. In order for item builds you should check the build for Lulu.
Passive: Pix, Faerie Companion
Pix fires magical bolts of energy whenever the champion he's following attacks another enemy unit. These bolts are homing, but can be intercepted by other units.
Glitterlance
Pix and Lulu each fire a bolt of magical energy that damages and heavily slows all enemies it hits.
Lulu and Pix each fire a piercing bolt dealing totaldamage magic damage and Slowing by e2%, decaying over e3 seconds.
Enemies take bonusmissiledamage magic damage from additional bolts.
Whimsy
If cast on an ally, grants them Attack Speed and Move Speed for a short time. If cast on an enemy, turns them into an adorable critter that can't attack or cast spells.
When used on an ally, Lulu grants totalms Move Speed and e7% Attack Speed for e5 seconds.
When used on an enemy, Lulu Polymorphs them for e3 seconds.
Help, Pix!
If cast on an ally, commands Pix to jump to an ally and shield them. He then follows them and aids their attacks. If cast on an enemy, commands Pix to jump to an enemy and damage them. He then follows them and grants you vision of that enemy.
When used on an ally, Pix jumps to them and grants Pix, Faerie Companion for e1 seconds. If the ally is a champion, Pix also grants totalshield Shield for e7 seconds.
When used on an enemy champion, Pix hampers them, dealing totaldamage magic damage and granting e6 seconds.
Wild Growth
Lulu enlarges an ally, knocking nearby enemies into the air and granting the ally a large amount of bonus health. For the next few seconds, that ally gains an aura that slows nearby enemies.
Lulu enlarges an ally, Knocking Up surrounding enemies for knockbackduration second. The enlarged ally gains totalbonushealth max Health and Slows surrounding enemies by slowpercent% for buffduration seconds.
FAQ on Lulu
What do you max first on Lulu?
Most Lulu pros max out 
Whimsy first.