Sivir's Boomerang Blade returns to her after reaching the max range, so you can shift position to hit enemies who would otherwise have evaded it.
Try saving Spell Shield for enemy abilities that can disable you such as stuns and roots.
Ricochet resets Sivir's basic attack timer on activation, so activating this immediately after landing a normal basic attack will maximize damage output.
Time Warp is an effective way to enable allies to finish off enemies, or escape from a losing battle.
Chronoshift is a powerful deterrent to attacking your carries, but casting Chronoshift too early in a fight can cause the enemy to switch targets too soon, making it less effective.
You can combine the use of Time Bomb and Rewind to place two Time Bombs on a target quickly. Placing the second bomb will detonate the first and stun all nearby enemies.
The Sivir Zilean synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Zilean, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Sivir sees a very large drop in her KDA (ratio of kills and assists to deaths) when paired with Zilean. His KDA went down from NaN to NaN. This decrease shows that Zilean helps Sivir perform poorer in competitive League of Legends games. Yet, the small difference shows that this performance change is only marginal.
When Sivir tries to synergize with Zilean, she sees a little decrease in her full damage dealt. This change could indicate that Zilean does not help protection for her to deal more damage or that his allyship also helps extend the match's duration. Similarly, when Sivir is played alongside Zilean on the same side, he usually scores many fewer killing sprees compared to when she plays without Zilean. This is contrasting evidence that she is worse when playing alongside Zilean.
Moreover, when Sivir plays with Zilean on the same side, she on average takes a little more damage than when she plays alone. Taking more damage may mean that Zilean does a poor job of protecting Sivir in teamfights.
There is no universally accepted best companion for Sivir that will no matter what be her top ally. However, Zilean is a below average ally for Sivir. By being on the same team as Sivir, he lowers their win rate by -1.3% to 46.6%. This clearly indicates that there is a negative strategic relationship between Sivir and Zilean that allows them to perform worse together than without each other.
Zilean has a greater difficulty than Sivir. That means you should be careful when lining up Zilean allies to play with, as they will have to have a greater level of skill to work well with you.
When playing alongside, you should expect to see an overall large increase in your team’s capacity to destroy wih physical damage. When paired, these champs can provide a great amount of sustained physical damage.
In contrast, by pairing Sivir and Zilean together, you probably will not be providing your team much engage potential. Plan to bring other champs on your team that nullifies this relative hole in their potential.
Regardless of the ability of your Zilean ally, you need to focus on maximizing your income, warding to avoid ambushes, and clearing objectives. If you do this, you will do well anyway.
If you would like to truly master Sivir in order to synergize with Zilean during both the lane and mid / late game phases of LoL rounds, you should continue reading to learn some more lessons on this champion pairing. If you use the build and stats presented above, you should grow your win rate significantly.
The top items to include in your Sivir and Zilean synergy build consist of Phantom Dancer, Kraken Slayer, and Navori Quickblades. When Sivir combined at least these three items in her build, she performed significantly better as an ally of Zilean than with most other typical item sets. In fact, Sivir boasted an average winrate of 46.6% helping carry Zilean with these items in her kit.
To have the highest probability of crushing your oponents, you should use the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Biscuit Delivery, and Magical Footwear runes from the Precision and Inspiration rune sets. Out of all the rune combinations players chose for Sivir and Zilean pairings, this mix of runes resulted in the top win rate. Notably, these runes averaged a 46.6% win rate overall.
If you need to view Sivir and Zilean cooperations tips and stats for a a specific player tier, feel free to select one from the selection menu shown above. By default, the stats and build suggestions shown are calculated using all games played with both champs.