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.
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 Thresh 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, Thresh sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Sion. His KDA went down from NaN to NaN. This worsening shows that Sion helps Thresh perform worse in competitive LoL rounds. Yet, the small difference indicates that this performance change is only marginal.
When Thresh is an ally to Sion, he observes a small increase in his total damage output. This may indicate that Sion helps provide protection for him to deal more damage or that his presence on the team also helps extend the game's duration. Similarly, when Thresh is played 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 alongside Sion.
Moreover, when Thresh plays with Sion on the same side, he often receives a little more damage than when he fights alone. Getting dealt more damage could mean that Sion does a poor job of covering Thresh in team fights.
There is no perfect companion for Thresh that will no matter what be his top ally. However, overall, Sion is a below average companion for Thresh. By being on the same team as Thresh, he decreases their win rate by -1.2% to 47.3%. This signals that there is a bad strategic relationship between Thresh and Sion that allows them to perform not as well together than without each other.
Sion has a lower difficulty than Thresh. That means you don't need to be very careful when enlisting Sion teammates to go into battle on the same side as, as they will have to have a relatively low level of skill to play well with you.
Fighting alongside, you should witness an overall large increase in your team’s capability to tank a lot of damage. Combined, these champs will be able to tank for the rest of their team.
Although, by pairing Thresh and Sion together, you probably will not be providing your other allies very much magical damage output. Plan to have other champs on your team that offsets this relative disparity in their capabilities.
Regardless of your Sion ally's skill level, you should focus on increasing your gold income, warding to avoid ambushes, and clearing objectives. If you follow these simple suggestions, you should do well anyway.
To truly master Thresh to work well with Sion during both the laning and mid / late game phases of League rounds, you should continue reading to master additional tips and tricks for this champion pairing. If you use the build and suggestions presented above, you will increase your win rate by a lot.
The top finished items to build first in your Thresh and Sion synergy build consist of Zeke's Convergence, Knight's Vow, and Solstice Sleigh. When Thresh bought at least these three great items in his build, he performed much better when paired up with Sion than with many other commonly used builds. In fact, Thresh had an average winrate of 47.3% helping carry Sion with this build.
To have the greatest likelihood of crushing your oponents, you should take the Guardian, Font of Life, Bone Plating, Unflinching, Biscuit Delivery, and Cosmic Insight runes from the Resolve and Inspiration rune sets. Out of all the rune combinations players chose for this team composition, this set of runes resulted in the greatest win rate. Moreover, these runes provided a 47.3% win rate overall.
By default, tips, statistics, and builds on how to pair Sion with Thresh are presented for all ranked divisions. If you want to filter the statistics and builds to a particular rank, you may use the selection menu earlier on the page.