Timing Flash Frost with Frostbite can lead to devastating combinations.
It can be very difficult for enemy champions to kill her egg early in game. Seize the advantage by playing aggressively.
Anivia is extremely reliant on Mana for Glacial Storm. Try getting items with Mana or going for a Crest of the Ancient Golem buff on Summoner's Rift.
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 stat comparisons provided here show several valuable Anivia against Sion matchup stats that may help us figure out the distinctions between this set of champions. Anivia’s KDA ratio ([kills + assists] / deaths) of NaN is more than Sion’s KDA ratio of NaN, showing that Anivia may be more central to her team's team fighting effectiveness than Sion..
Anivia usually has a slightly larger longest kill spree than her enemy does. Typically, she receives less damage than Sion. This typically indicates different amounts of tankyness, but it can also show that the champion with more HP has less mobility and thus is not able to kite away from further harm when poked or engaged.
Both League champions are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Anivia usually wins when facing off against Sion, with a 53.3% win rate. As a result, Anivia makes a great counter for Sion.
While Anivia does have a higher winrate compared to Sion, when facing one another, Anivia also has a much greater level of difficulty that makes her a more complex champ to pick up and master. You should be be fine when picking Anivia into Sionas her relative depth means that you may not be able to unleash her full potential without a significant amount of practice beforehand.
Moreover, Anivia has some amount of CC and other utility, a similar amount to Sion. This often makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there is not one best champion overall in League of Legends, in Anivia vs Sion matchups, Anivia is the better champion with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your team members during late stage team fights.
Anivia is a great counter to Sion. You will do well by focussing your gameplay on maximizing your CS and taking out objectives. If you are able to do that, you should hold your own as Anivia against Sion.
If you would like to learn all of the intricacies of Anivia 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 tips and tricks for this matchup. If you listen to the build and stats displayed above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Anivia most often racks up a similar amount of CS compared to Sion. Champs who on average don't get many minion kills usualy don't require much CS to be valuable teammates, such as supports. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, often need several high cost items to be effective. In either situation, try to exceed the numbers reported on this page to do well.
The top items to prioritize in your Anivia versus Sion build consist of Seraph's Embrace, Malignance, and Liandry's Torment. When Anivia bought at least these three pieces in her build, she performed much better vs. Sion than with most other commonly used counter builds. In fact, Anivia boasted an average win rate of 53.3% battling Sion with these items in her kit.
To have the highest chance of defeating Sion as Anivia, Anivia players should equip the Electrocute, Cheap Shot, Eyeball Collection, Relentless Hunter, Presence of Mind, and Coup de Grace runes from the Domination and Precision rune sets. Out of all the rune combinations players used for Anivia vs Sion face-offs, this order of runes resulted in the best win rate. In fact, these runes averaged a 53.3% win rate overall.
If you would like to get Anivia versus Sion tips and counter builds for a a particular player tier, feel free to choose one from the selection menu displayed above. By default, the stats and guides given are computed using all games completed with both champions.