Use the time after Sion has died to reposition and prepare for his return.
Even if Sion still hits a Decimating Smash, making him release the charge earlier reduces its impact.
The stats shown on this page clarify several critical Zeri vs. Sion counter stats that can help us figure out the differences between the pair. For instance, Zeri’s KDA ratio ([kills + assists] / deaths) of NaN is better than Sion’s ratio of NaN, demonstrating that Zeri may be more central to their team's team fighting capability than Sion. This observation is in large part a result of the difference in kills.
Zeri usually has a slightly larger longest killing spree than their opponent does. Typically, they takes less damage than Sion. This typically indicates different amounts of tankyness, but it can also indicate that the one champion has less agility and thus is unable to kite away from further damage when poked or engaged.
Both League of Legends champions are great. Both have their pros and cons. In the game's current meta, Zeri usually loses when taking on Sion, with a 45.6% win rate. Thus, Zeri makes a poor counter to Sion.
While Zeri does have a much lower win rate than Sion, when they face off with one another, Zeri also has a greater level of difficulty that makes them a more complex champ to pick up and master. You may get destroyed when picking Zeri into Sion.
Additionally, Zeri has some amount of CC and other utility, a similar amount to Sion. This makes her just as valuable during teamfights, especially when facing champions with a ton of burst damage.
While there isn't a single best champion overall in League of Legends, in Zeri vs Sion matchups, Sion is the better champion with a much lower win rate, more champion depth, and a similar amount of utility to help out your allies during team fights.
Zeri is a trash counter to Sion. You will do well by focussing your tactics on maximizing your gold income and destroying objectives. If you do that, you should do very well as Zeri against Sion.
To learn all of the intricacies of Zeri in order to counter Sion during both the lane and mid / late game phases of League of Legends, you should continue reading to gather a few extra lessons on this matchup. If you pay attention to the build and stats displayed above, you will increase your win rate significantly and be that much closer to League of Legends pro players.
Zeri often gets a similar amount of CS compared to Sion. Champs who typically don't get many minion kills often don't require much CS to be effective, such as sup champs. These kinds of champions are able to scale properly off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, typically need several high cost items to be effective. In either situation, try to do better than the values displayed on this page to do well.
The ideal items to use in your Zeri versus Sion build include Experimental Hexplate, Runaan's Hurricane, and Titanic Hydra. When Zeri bought at least these three items in their build, they performed a lot better against Sion than with many other typical counter builds. In fact, Zeri had an average win rate of 45.6% battling Sion with these items in their kit.
To have the best chance of coming out on top against Sion as Zeri, Zeri players should equip the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Out of all the rune sets we have analyed for Zeri vs Sion clashes, this order of runes yielded the best win rate. Moreover, these runes averaged a 45.6% winrate overall.
If you want to see Zeri x Sion tips and counter stats for a a distinct rank, feel free to select one from the selection menu provided above. If viewing for the first time, the stats and guides displayed are calculated using all games played with these champs.