Spread out when you see Sona so she can't make your entire team dance.
Kill Sona first, as she will heal up her team if left alone for too long.
The stats provided here emphasize some significant Zeri against Sona matchup stats that may help us distinguish the differences and similarities between this set of champs. Zeri’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Sona’s ratio of NaN, showing that Zeri may be more central to their team's team fighting effectiveness than Sona. This observation is largely fueled by the difference in kills.
Zeri usually has a much larger longest kill spree than their opponent does. On average, they receives more damage than Sona. This commonly reflects different amounts of tankyness, but it can also hint that the one champ has less agility and thus is unable to flee from further damage when engaged or poked.
Both LoL champions are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Zeri usually fairs equally well when taking on Sona, with a 49.2% win rate. Therefore, Zeri makes an ok counter for Sona.
While Zeri does have a lower winrate than Sona, when facing one another, Zeri also has a greater difficulty level that makes them a more challenging champ to develop with. You should be careful when picking Zeri into Sona.
Furthermore, Zeri also has some amount of CC and other utility, a similar amount to Sona. This makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Zeri vs Sona matchups, Sona is the better champion with a similar win rate, more champion depth, and a similar amount of utility to help out your allied champions during team fights.
Zeri is a somewhat poor counter to Sona. Make sure you focus your tactics on increasing your gold and cs and taking out objectives. If you do that, you should hold your own as Zeri against Sona.
To learn all of the intricacies of Zeri to counter Sona during both the early game and mid / late game phases of League of Legends, you should keep reading to pick up a few extra lessons on this matchup. If you listen to the build and suggestions shown above, you should increase your win rate by a lot and be that much closer to League of Legends pro players.
Zeri usually picks up much more CS as Sona. Champs who on average don't get much CS typically don't have to have much CS to be valuable teammates, such as support champions. They are capable of scaling well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically need several high cost items to be effective. In either case, try to surpass the numbers reported here to do well.
The best items to prioritize in your Zeri versus Sona build include Experimental Hexplate, Runaan's Hurricane, and Navori Quickblades. When Zeri incorporated at least these three pieces in their build, they performed much better countering Sona than with many other commonly used item sets. In fact, Zeri had an average win rate of 49.2% when countering Sona with these items in their kit.
To have the best likelihood of defeating Sona as Zeri, you should take the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Out of all the runes players chose for Zeri vs Sona counter picks, this mixture of runes resulted in the highest win rate. In fact, these runes provided a 49.2% winrate overall.
If you need to view Zeri vs Sona tips and matchup stats and build suggestions for a a specific skill level, feel free to choose one from the selection menu above. By default, the statistics and strategies given are computed using all matches finished with both champs.