Placing a Living Shadow before using Death Mark can give Zed a safe escape from combat.
Saving energy and spell cooldowns until you use your ultimate will maximize Death Mark's damage.
Quickly double tapping Living Shadow will teleport Zed to his shadow immediately for rapid escapes.
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 shown on this page clarify some vital Zed vs. Sion counter statistics that may help you understand the distinctions between the pair. As an example, Zed’s KDA ratio ([kills + assists] / deaths) of NaN is better than Sion’s ratio of NaN, demonstrating that Zed may be more central to his team's team fighting capability than Sion. This observation is in large part caused by the difference in kills.
Zed normally has a much larger longest kill spree than his matchup does. Typically, he takes less damage than Sion. This is usually reflective of different amounts of tankyness, yet it can also indicate that the champ with more health has less agility and thus is unable to flee from further damage when poked or engaged.
Both League champs are great. Both champs have their pros and cons. In League's current meta, Zed usually loses when facing off against Sion, with a 48.7% win rate. Thus, Zed makes a bad counter to Sion.
While Zed does have a lower winrate compared to Sion, when they face off with one another, Zed also has a greater learning curve that makes him a more difficult character to develop with. You should be careful when picking Zed into Sionas his relative depth means that you may not be able to reach his full potential without a significant amount of practice beforehand.
Moreover, Zed also has almost no amount of utility and CC, a similar amount to Sion. This often 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 Zed vs Sion matchups, Sion is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your teammates during late stage team fights.
Zed is a somewhat poor counter to Sion. You will do well by focussing your strategy on maximizing your gold income and destroying objectives. If you can do that, you should be able to stand on your own as Zed against Sion.
To learn all of the intricacies of Zed to counter Sion during both the laning and mid / late game phases of League of Legends, you should continue reading to learn a few extra tips and tricks for this matchup. If you pay attention to the build and tips displayed here, you should grow your win rate by a lot and be that much closer to League of Legends pro players.
Zed on average accumulates a similar amount of CS relative to Sion. Champs who typically don't earn much CS usualy don't require much CS to be effective, such as support champions. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, often need a lot of items to be effective. In either situation, try to surpass the numbers shown on this page to do well.
The best items to use in your Zed versus Sion build include Serylda's Grudge, Profane Hydra, and Opportunity. When Zed combined at least these three pieces in his build, he did significantly better versus Sion than with many other common item sets. In fact, Zed had an average win rate of 48.7% when countering Sion with this counter build.
To have the best likelihood of coming out on top against Sion as Zed, you should use the Electrocute, Taste of Blood, Eyeball Collection, Ultimate Hunter, Scorch, and Transcendence runes from the Domination and Sorcery rune sets. Out of all the rune builds players chose for Zed vs Sion LoL games, this set of runes resulted in the highest win rate. Moreover, these runes gave a 48.7% win rate overall.
If you would like to view Zed vs Sion tips and matchup stats and build suggestions for a a distinct player tier, feel free to choose one from the selection menu displayed above. If viewing for the first time, the statistics and build suggestions displayed are calculated using every match run with both champions.