Make sure to take paths through brush when chasing opponents to take advantage of Rengar's passive.
Use Rengar's ultimate to find and assassinate high priority targets in team fights and skirmishes.
A lot of Rengar's power comes from empowered abilities he uses at the right moment - choose wisely!
Roar of the Slayer is a great setup ability to land a very powerful Decimating Smash.
The Soul Furnace buff displays how much shield strength is remaining, use this information to time its explosion perfectly.
You only have very slight turning ability during Unstoppable Onslaught, so make sure to use it in straight paths.
The Rengar Sion synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Sion, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Rengar sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Sion. His KDA fell from NaN to NaN. This decrease shows that Sion helps Rengar perform poorer in ranked League of Legends matches. Yet, the small difference shows that this performance change is not very impactful.
When Rengar plays on the same team as Sion, he sees a small increase in his total damage output. This difference could signal that Sion helps provide cover for him to dish out more damage or that his allyship also helps extend the game's duration. Similarly, when Rengar is played with Sion on the same team, he usually scores many fewer killing sprees than when he plays on his own. This is contrasting evidence that he is worse when playing with Sion.
Additionally, when Rengar plays with Sion on the same side, he typically takes a little more damage than when he plays alone. Taking more damage could mean that Sion does a poor job of covering Rengar in teamfights.
There is no universally accepted best champion pairing for Rengar that will 100% of the time be his best synergy. Yet, overall, Sion is a very typical ally for Rengar. By being on the same side as Rengar, he improves their win rate by 0.8% to 49.8%. This shows that there is only a small synergy between Rengar and Sion that results in them performing at the top of their game together than alone.
Sion has a much lower diffuclty than Rengar. That means Rengar players don't need to be very careful when lining up Sion comrades to play with, as they will require a much lower level of skill to cooperate well with you.
Working together, Rengar players will likely observe an overall large increase in your team’s capability to to cover for your other teammates. Combined, these champions will be a great protective duo.
Conversely, by grouping Rengar and Sion together, you probably will not be providing your team a great deal of magic damage. Plan to include other champions on your team that helps cover this hole in their potential.
Regardless of your Sion ally's ability, you need to focus on increasing your income, warding to avoid ambushes, and clearing objectives. If you do this, you will do well anyway.
To learn all of the intricacies of Rengar in order to pair well with Sion during both the laning and mid / late game phases of League rounds, you should continue reading to pick up a few extra tips and tricks for this champion pairing. If you pay attention to the build and tips displayed here, you will increase your win rate by a lot.
The most important items to have in your Rengar and Sion synergy build consist of Edge of Night, Serylda's Grudge, and Hubris. When Rengar incorporated at least these three pieces in his build, he performed much better as an ally of Sion than with many other common item sets. In fact, Rengar had an average winrate of 49.8% helping carry Sion with these items in his kit.
To have the best likelihood of annihilating your oponents, you should equip the First Strike, Magical Footwear, Future's Market, Cosmic Insight, Sudden Impact, and Ultimate Hunter runes from the Inspiration and Domination rune sets. Of all the rune sets players chose for Rengar and Sion pairings, this blending of runes yielded the highest win rate. In fact, these runes gave a 49.8% win rate overall.
If you would like to view Rengar and Sion collaboration tips and stats for a an individual rank, feel free to select one from the selection menu displayed above. At first, the stats and build suggestions displayed are calculated using all matches finished with both champions.