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.
Communication is key when making use of Thresh's lantern. Let your teammates know how you like to use it.
Death Sentence and Flay can be combined in either cast order for powerful combinations.
Thresh can collect souls without needing to kill units himself. Planning your map position to be near the most deaths will help to maximize soul collection.
The Sion Thresh synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Thresh, 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 large worsening in his KDA (ratio of kills and assists to deaths) when paired with Thresh. His KDA worsened from NaN to NaN. This drop shows that Thresh helps Sion perform poorer in competitive LoL matches. Yet, the small difference proves that this performance change is not very impactful.
When Sion plays on the same team as Thresh, he observes a small increase in his total damage output. This may signal that Thresh provides cover for him to dish out more damage or that his allyship also helps extend the match's duration. Similarly, when Sion is played together with Thresh on the same side, he usually scores many fewer killing sprees compared to when he plays on his own. This is contrasting evidence that he is worse when playing synergisticly with Thresh.
Additionally, when Sion plays with Thresh on the same side, he usually takes a little less damage than when he fights alone. Taking not as much damage may mean that Thresh does a decent job of protecting Sion during teamfights.
There is no ideal synergy for Sion that will always be his best ally. However, overall, Thresh is a not very good teammate for Sion. By locking into the same side as Sion, he drops their win rate by -2.9% to 47.3%. This demonstrates that there is a negative bond between Sion and Thresh that results in them performing worse together than alone.
Thresh has a greater difficulty than Sion. That means you need to be careful when lining up Thresh comrades to play with, as they will need a greater level of skill to be able to fight well with you.
When playing together, Sion players should expect to witness an overall large increase in your team’s capacity to soak up damage. When paired, these champions will be a great protective duo.
In contrast, by bringing Sion and Thresh together, you may not be granting your team much AP. Make sure to bring other champions on your team that nullifies this relative hole in this pairing's kit.
Regardless of your Thresh ally's skill level, you should focus on increasing your gold income, outlasting your enemies, and clearing objectives. If you heed this simple advice, you will do well anyway.
If you would like to learn all of the intricacies of Sion in order to pair well with Thresh during both the laning and mid / late game phases of League, you should keep reading to pick up some more lessons on this champion pairing. If you mind the build and tips shown above, you will grow your win rate significantly.
The best finished items to focus on in your Sion and Thresh synergy build include Unending Despair, Sunfire Aegis, and Jak'Sho, The Protean. When Sion incorporated at least these three finished items in his build, he did much better as an ally of Thresh than with many other typical item sets. In fact, Sion had an average winrate of 47.3% when synergizing his build and playstyle to Thresh with these items in his kit.
To have the greatest probability of defeating your oponents, Sion players should use the Grasp of the Undying, Demolish, Conditioning, Overgrowth, Approach Velocity, and Minion Dematerializer runes from the Resolve and Inspiration rune sets. Of all the rune combinations players chose for this team composition, this order of runes yielded the best win rate. Moreover, these runes gave a 47.3% win rate overall.
By default, tips, stats, and builds on how to team up Thresh with Sion are shown for all skill levels combined. If you would like to scope the statistics and builds to a distinct skill level, you can use the selection menu located at the top of this page.