Garen is only constrained by cooldowns, making items such as Black Cleaver very effective for him.
Garen's regeneration greatly increases if he can avoid receiving damage for several seconds.
Judgment deals maximum damage when only hitting a single target. For effective trading, try to position such that only the enemy champion is hit.
The stat comparisons shown here emphasize some significant Garen vs. Senna matchup stats that can help you explain the differences between the two. Garen’s KDA ratio ([kills + assists] / deaths) of NaN is more than Senna’s ratio of NaN, indicating that Garen may be more central to his team's team fighting capability than Senna..
Garen often has a similar longest kill spree as his enemy does. Typically, he takes more damage than Senna. This is usually reflective of differing health capacities, but it can also show that the champion with higher health has less agility and thus is not able to flee from further harm when engaged or poked.
Both League of Legends champs are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Garen usually loses when playing against Senna, with a 47.6% win rate. Thus, Garen makes a bad counter to Senna.
While Garen does have a lower win rate than Senna, when on opposite teams, Garen also has a lower difficulty level that makes him a less complex champ to pick up and master. You should expect to face a difficult match when picking Garen into Senna.
Moreover, Garen has almost no amount of utility and CC, a similar amount to Senna. This often makes her just as valuable during teamfights, especially when fighting champions with a ton of burst damage.
While there is not one best champion for every situation in League of Legends, in Garen vs Senna matchups, Senna is the better champ with a lower win rate, less champion complexity, and a similar amount of utility to help out your allies during late stage team fights.
Garen is a terribly counter for Senna. You will do well by focussing your strategy on increasing your gold income and taking out objectives. If you are able to do that, you should be able to stand on your own as Garen against Senna.
To learn all of the intricacies of Garen in order to counter Senna during both the early game 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 tips shown above, you will increase your win rate by a lot and be closer to League of Legends pro players.
Garen most often picks up more CS as Senna. Champs who on average don't get many minion kills usualy don't require much CS to be effective, such as support champions. These kinds of champions are able to scale well off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually require a lot of items to be effective. In either case, try to surpass the numbers displayed here to do well.
The ideal items to prioritize in your Garen versus Senna build consist of Phantom Dancer, Trinity Force, and Stridebreaker. When Garen incorporated at least these three items in his build, he did much better vs. Senna than with many other commonly used builds. In fact, Garen had an average win rate of 47.6% battling Senna with this counter build.
To have the greatest likelihood of defeating Senna as Garen, you should use the Conqueror, Triumph, Legend: Tenacity, Last Stand, Nimbus Cloak, and Celerity runes from the Precision and Sorcery rune sets. Of all the rune builds players picked for Garen vs Senna fights, this blending of runes resulted in the highest win rate. Notably, these runes gave a 47.6% winrate overall.
By default, tips, statistics, and builds on how to beat Senna as Garen are displayed for all ranked divisions combined. If you would like to narrow the statistics and builds to a specific skill level, you may use the selection menu located earlier in the counter matchup guide.