Gwen can still damage enemies outside her Hallowed Mists, especially with her Ultimate's range.
Some of Gwen's Abilities can apply her passive to multiple enemies, so aim them at groups to get maximum damage and healing.
Always be Attacking - In addition to dealing bonus damage, Gwen's Attacks empower or reset many of her Abilities.
The stats provided here clarify several significant Gwen against Senna matchup statistics that may help us explain the differences and similarities between these two champions. For instance, Gwen’s KDA ratio ([kills + assists] / deaths) of NaN is better than Senna’s KDA ratio of NaN, showing that Gwen may be more central to her team's team fighting capability than Senna..
Gwen often has a slightly larger longest killing spree than her enemy does. Commonly, she takes more damage than Senna. This often reflects different amounts of tankyness, but it can also hint that the champ with more health has less mobility and thus is unable to kite away from additional damage when poked or engaged.
Both League of Legends champions are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Gwen usually loses when facing off against Senna, with a 48.8% win rate. Therefore, Gwen makes a poor counter for Senna.
While Gwen does have a lower winrate than Senna, when facing one another, Gwen also has a lower level of difficulty that makes her a less time consuming champion to learn and master. You should be careful when picking Gwen into Senna.
Additionally, Gwen has some 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 lot of burst damage.
While there isn't one best champion overall in League of Legends, in Gwen 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 allied champions during late stage team fights.
Gwen is a somewhat poor counter for Senna. You will do well by focussing your actions on increasing your CS and taking out objectives. If you do that, you should hold your own as Gwen against Senna.
To learn all of the intricacies of Gwen in order to counter Senna during both the laning and mid / late game phases of League of Legends, you should continue reading to gather a few extra lessons on this matchup. If you mind the build and stats shown above, you will increase your win rate significantly and be closer to League of Legends pro players.
Gwen often picks up more CS as Senna. Champs who typically don't get much CS typically don't need much CS to be effective, such as support champions. They 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 require a lot of items to be effective. In either situation, try to surpass the numbers reported here to do well.
The best items to focus on in your Gwen versus Senna build consist of Rabadon's Deathcap, Riftmaker, and Shadowflame. When Gwen included at least these three items in her build, she performed a lot better when fighting Senna than with many other commonly used item sets. In fact, Gwen boasted an average win rate of 48.8% when countering Senna with these items in her kit.
To have the greatest probability of crushing Senna as Gwen, Gwen players should use the Conqueror, Presence of Mind, Legend: Alacrity, Last Stand, Bone Plating, and Unflinching runes from the Precision and Resolve rune sets. Out of all the runes players picked for Gwen vs Senna counterpicks, this combination of runes yielded the highest win rate. Notably, these runes gave a 48.8% win rate overall.
If you need to get Gwen x Senna tips and matchup stats and build suggestions for a a specific division, feel free to select one from the selection menu shown above. At first, the stats and build suggestions shown are computed using every match with data with these champions.