Using Rupture on creeps in combination with Carnivore is a good way to gain Health and Mana.
If you're having difficulty feasting upon champions, try eating minions until you're larger.
Try to line up your attacks with Vorpal Spikes so that they kill minions and harass enemy champions at the same time.
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 Cho'Gath 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, Cho'Gath sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Sion. His KDA decreased from NaN to NaN. This negative change shows that Sion helps Cho'Gath perform worse in ranked League matches. Yet, the small difference shows that this performance change is not very impactful.
When Cho'Gath plays on the same team as Sion, he sees a little increase in his full damage dealt. This change could indicate that Sion supports by providing protection for him to dish out more damage or that his participation also helps extend the game's duration. Similarly, when Cho'Gath is played alongside Sion on the same side, he usually scores many fewer killing sprees compared to when he plays alone. This is contrasting evidence that he is worse when playing with Sion.
Moreover, when Cho'Gath plays with Sion on the same side, he usually takes a little less damage than when he plays alone. Getting dealt not as much damage may indicate that Sion does a decent job of covering Cho'Gath in teamfights.
There is no ideal ally for Cho'Gath that will 100% of the time be his ideal synergy. Yet, Sion is a pretty good ally for Cho'Gath. By being on the same team as Cho'Gath, he improves their win rate by 2.1% to 51.6%. This demonstrates that there is a somewhat important bond between Cho'Gath and Sion that results in them performing at the top of their game together than without each other.
Sion has a lower difficulty than Cho'Gath. That means you don't need to be very careful when finding Sion allies to fight alongside, as they will have to have a lower level of skill to be able to play well with you.
Fighting cooperatively, Cho'Gath players should witness an overall large increase in your team’s capacity to soak up damage. Together, these two will be a great protective duo.
Although, by aligning Cho'Gath and Sion together, you will not be giving your other teammates a great deal of anti-tank damage dealing potential. Make sure to include other champs on your team that offsets this gap in this pairing's abilities.
Regardless of your Sion ally's skill level, you should focus on maximizing your gold income, warding to avoid ambushes, and clearing objectives. If you heed this simple advice, you will do well, regardless.
To truly master Cho'Gath to synergize with Sion during both the lane and mid / late game phases of League games, you should keep reading to learn a few extra tips and tricks for this champion pairing. If you pay attention to the build and suggestions displayed here, you will grow your win rate by a lot.
The top items to get in your Cho'Gath and Sion synergy build include Unending Despair, Sunfire Aegis, and Heartsteel. When Cho'Gath bought at least these three great items in his build, he did a lot better as an ally of Sion than with most other common item sets. In fact, Cho'Gath had an average win rate of 51.6% helping carry Sion with this build.
To have the greatest chance of annihilating your oponents, Cho'Gath players should equip the Grasp of the Undying, Demolish, Conditioning, Overgrowth, Legend: Tenacity, and Triumph runes from the Resolve and Precision rune sets. Out of all the rune sets players picked for this champion pairing, this mix of runes yielded the top win rate. Moreover, these runes gave a 51.6% win rate overall.
If you need to see Cho'Gath and Sion cooperations tips and stats for a a particular division, feel free to choose one from the selection menu provided above. If viewing for the first time, the stats and tips and suggestions given are computed using every match with data with these champs.