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 Sion Senna synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Senna, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Sion sees a very large drop in his KDA (ratio of kills and assists to deaths) when paired with Senna. His KDA went down from NaN to NaN. This negative change shows that Senna helps Sion perform poorer in competitive League rounds. Yet, the small difference indicates that this performance change is not very impactful.
When Sion is an ally to Senna, he sees a little drop in his complete damage output. This could signal that Senna does not provide cover for him to dish out more damage or that her support also helps increase the match's duration. Similarly, when Sion is played with Senna on the same team, he usually scores many fewer killing sprees than when he plays without Senna. This is contrasting evidence that he is worse when playing alongside Senna.
Moreover, when Sion plays with Senna on the same side, he usually takes a little less damage than when he fights alone. Receiving not as much damage may indicate that Senna does a decent job of covering Sion during team fights.
There is no ideal champion pairing for Sion that will 100% of the time be his ideal synergy. However, Senna is a very typical companion for Sion. By locking into the same team as Sion, she raises their win rate by 0.6% to 50.8%. This demonstrates that there is a weak bond between Sion and Senna that results in them performing at the top of their game together than alone.
Senna has a greater difficulty than Sion. That means you need to be cautious when finding Senna teammates to fight alongside, as they will require a greater level of skill to do well with you.
Playing together, you should expect to witness an overall large increase in your team’s ability to buff allies and debuff enemies. Together, these champions should be able to manipulate the pace of team fights.
Conversely, by pairing Sion and Senna together, you will not be providing your team very much AP. Plan to include other champions on your team that nullifies this relative disparity in their potential.
Regardless of your Senna ally's ability, you need to focus on increasing your income, staying alive by avoiding foolish fights, and taking down objectives. If you follow these simple suggestions, you should do well anyway.
If you would like to truly master Sion to synergize with Senna during both the early game and mid / late game phases of League of Legends, you should keep reading to learn some more lessons on this champion pairing. If you mind the build and tips displayed here, you will increase your win rate by a lot.
The most important finished items to focus on in your Sion and Senna synergy build include Unending Despair, Titanic Hydra, and Hollow Radiance. When Sion included at least these three items in his build, he did much better when fighting alongside Senna than with many other commonly used builds. In fact, Sion had an average winrate of 50.8% when synergizing his build and playstyle to Senna with these items in his kit.
To have the highest chance of annihilating your oponents, you should take the Grasp of the Undying, Demolish, Conditioning, Overgrowth, Approach Velocity, and Minion Dematerializer runes from the Resolve and Inspiration rune sets. Of all the runes that we analyzed for this team composition, this mix of runes resulted in the best win rate. Notably, these runes gave a 50.8% winrate overall.
By default, tips, stats, and builds on how to pair Senna with Sion are given for all skill levels, merged. If you would like to scope the stats and builds to a particular division, you should use the selection menu at the top of this page.