LoL Lulu players will likely find her to be a complex champion to build out properly. You'll see that her build varies when she is up against either well-rounded or specialized team compositions, showing you shouldn't choose the same Lulu build every single game of League of Legends
The most important items to use in your champion's build include: Shurelyas Kampfhymne, Thymiaterion, and Stab des fließenden Wassers. Those who included these pieces in their builds had a higher win rate than players who used other Lulu builds. Likewise, if you are playing a varied enemy team comp, you should really consider grabbing Lulu the Zauberei, and Inspiration runes. In recent matches, she won the largest fraction of her games when equipped with these runes.
We came up with our Lulu build guidance by analyzing 70.376 recently ranked League matches with her selected. We only propose the highest winrate Lulu builds that have been used by ranked gamers enough times for us to propose them. With so many matches in our dataset, we are quite confident in our provided builds.