Picking up goo chunks is very important to staying alive.
When Cell Division is ready, try to die in a position that makes it difficult for the enemy team to kill your bloblets.
Charging Elastic Slingshot from the fog of war will give opponents less time to react.
Body Slam is on a very low cooldown, making it difficult to pursue Gragas. Don't overextend yourself chasing him.
Gragas can knock everybody away with his ultimate. Be careful that you don't get knocked into him or, worse, an enemy tower.
The stats provided here show several significant Zac versus Gragas counter stats that may help you explain the differences between the two. As an example, Zac’s KDA ratio ([kills + assists] / deaths) of NaN is more than Gragas’s KDA ratio of NaN, showing that Zac may be more central to his team's team fighting effectiveness than Gragas..
Zac often has a slightly smaller longest kill spree than his counter does. On average, he takes more damage than Gragas. This commonly reflects different amounts of tankyness, but it can also illustrate that the one champ has less agility and thus is unable to kite away from further harm when engaged or poked.
Both League champions are great. Both have their strengths, weaknesses, and counters. In League's current meta, Zac usually wins when taking on Gragas, with a 54.2% win rate. Thus, Zac makes a great counter for Gragas.
While Zac does have a much higher win rate than Gragas, when on opposite teams, Zac also has a much greater learning curve that makes him a more challenging champion to develop with. You don't need to be too worried when picking Zac into Gragasas his relative depth means that you may not be able to reach his full potential without a lot of practice beforehand.
Furthermore, Zac also has some amount of CC and other utility, a similar amount to Gragas. 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 for every situation in League of Legends, in Zac vs Gragas matchups, Zac is the better champ with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your team members during teamfights.
Zac is a great counter to Gragas. You will do well by focussing your gameplay on keeping up your CS and destroying objectives. If you can do that, you should be able to stand on your own as Zac against Gragas.
If you would like to truly master Zac to counter Gragas during both the lane and mid / late game phases of League of Legends, you should continue reading to pick up 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.
Zac on average gets less CS compared to Gragas. Champions who on average don't take many minion kills typically don't require much CS to be effective, such as sup champs. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often require several high cost items to be effective. In either situation, try to do better than the numbers reported on this page to do well.
The most important items to focus on in your Zac versus Gragas build consist of Spirit Visage, Thornmail, and Hollow Radiance. When Zac incorporated at least these three pieces in his build, he did significantly better when facing Gragas than with many other typical builds. In fact, Zac had an average winrate of 54.2% when countering Gragas with this counter build.
To have the best probability of defeating Gragas as Zac, Zac players should use the Aftershock, Font of Life, Conditioning, Revitalize, Legend: Tenacity, and Triumph runes from the Resolve and Precision rune sets. Of all the rune sets players chose for Zac vs Gragas clashes, this mixture of runes yielded the highest win rate. Moreover, these runes provided a 54.2% win rate overall.
By default, tips, statistics, and builds on how to beat Gragas as Zac are shown for every ranked division. If you would like to scope the statistics and builds to a particular division, you may use the selection menu located earlier on the page.