Clever use of enemy ultimates can open up new possibilities to approach teamfights.
Wait for you or your enemy to reach low health before using Kingslayer for maximum effect.
Space out your ability usage to get maximum effect from Petricite Burst.
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 Sylas 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, Sylas sees a very large drop in his KDA (ratio of kills and assists to deaths) when paired with Sion. His KDA went down from NaN to NaN. This negative change shows that Sion helps Sylas perform not as well in ranked League of Legends games. Yet, the small difference shows that this performance change is only marginal.
When Sylas plays on the same team as Sion, he sees a small increase in his complete damage dealt. This may signal that Sion helps provide protection for him to dish out more damage or that his allyship also helps increase the match's duration. Similarly, when Sylas is played together with Sion on the same side, 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 Sylas plays with Sion on the same team, he usually takes a little more damage than when he plays alone. Getting dealt more damage could indicate that Sion does a poor job of covering Sylas in teamfights.
There is no one best synergy for Sylas that will 100% of the time be his best teammate. However, overall, Sion is a very typical ally for Sylas. By locking into the same side as Sylas, he increases their win rate by 0.8% to 49.8%. This proves that there is not really a strong bond between Sylas and Sion that allows them to perform stronger together than without each other.
Sion has a lower difficulty than Sylas. That means Sylas players don't need to be cautious when enlisting Sion comrades to fight alongside, as they will have to have a relatively low level of skill to be able to fight well with you.
Playing together, you should observe an overall large increase in your team’s capacity to to cover for your other teammates. Together, these champions might be able to provide enough cover for their team's carries.
Conversely, by bringing Sylas and Sion together, you may not be providing your side very much sustained damage output. Plan to include other champions on your team that helps cover this relative hole in this pairing's potential.
Regardless of the ability of your Sion ally, you should focus on increasing your gold income, outlasting your enemies, and clearing objectives. If you do this, you should do well anyway.
To truly master Sylas in order to synergize with Sion during both the lane and mid / late game phases of League of Legends games, you should continue reading to learn a few extra tricks and insights into this champion pairing. If you use the build and suggestions displayed above, you will increase your win rate by a lot.
The best finished items to have in your Sylas and Sion synergy build include Rabadon's Deathcap, Shadowflame, and Stormsurge. When Sylas incorporated at least these three items in his build, he performed significantly better as an ally of Sion than with most other commonly used item sets. In fact, Sylas boasted an average winrate of 49.8% when synergizing his build and playstyle to Sion with these items in his kit.
To have the greatest likelihood of vanquishing your oponents, you should equip the Electrocute, Sudden Impact, Eyeball Collection, Relentless Hunter, Transcendence, and Scorch runes from the Domination and Sorcery rune sets. Out of all the rune sets players chose for Sylas and Sion pairings, this mix of runes resulted in the best win rate. Notably, these runes gave a 49.8% winrate overall.
If you want to view Sylas and Sion synergy tips and stats for a a particular skill level, feel free to select one from the selection menu provided above. By default, the statistics and tips and suggestions given are calculated using all games finished with these champs.