Rammus often stacks high Armor, leaving him especially vulnerable to caster damage while not in Defensive Ball Curl.
Pay particular attention to when his Defensive Ball Curl is off. Rammus has much lower stats than a normal tank when he's out of the stance.
The stat comparisons shown here highlight some significant Senna versus Rammus matchup stats that may help us grasp the differences between the two. For instance, Senna’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Rammus’s KDA ratio of NaN, demonstrating that Senna may be more central to her team's team fighting potential than Rammus..
Senna normally has a similar longest kill spree as her matchup does. On average, she receives less damage than Rammus. This typically indicates different amounts of tankyness, but it can also illustrate that the one champion has less mobility and thus is unable to flee from further damage when engaged or poked.
Both League of Legends champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Senna usually loses when trying to fight Rammus, with a 47.4% win rate. Thus, Senna makes a poor counter to Rammus.
While Senna does have a lower winrate compared to Rammus, when on opposite teams, Senna also has a greater level of difficulty that makes her a more difficult champ to develop with. You may get destroyed when picking Senna into Rammusas her relative depth means that you may not be able to unleash her full potential without a significant amount of practice beforehand.
Additionally, Senna has a good amount of CC and other utility, a similar amount to Rammus. This often makes her just as valuable during teamfights, especially when facing champions with a ton of burst damage.
While there is not one best champion in League of Legends, in Senna vs Rammus matchups, Rammus is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your allies during teamfights.
Senna is a garbage counter to Rammus. You will do well by focussing your strategy on keeping up your gold and cs and destroying objectives. If you do that, you should hold your own as Senna against Rammus.
If you would like to truly master Senna in order to counter Rammus during both the lane 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 listen to the build and stats displayed above, you will grow your win rate significantly and be that much closer to League of Legends pro players.
Senna typically picks up more CS relative to Rammus. Champs who on average don't take many minion kills usualy don't have to have much CS to be effective, such as support champions. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, typically need a lot of items to be effective. In either case, try to exceed the values displayed on this page to do well.
The ideal items to prioritize in your Senna versus Rammus build include Youmuu's Ghostblade, Edge of Night, and Bloodsong. When Senna used at least these three items in her build, she did much better countering Rammus than with most other typical counter builds. In fact, Senna boasted an average win rate of 47.4% when playing against Rammus with this counter build.
To have the greatest chance of annihilating Rammus as Senna, you should equip the Fleet Footwork, Presence of Mind, Legend: Alacrity, Cut Down, Approach Velocity, and Biscuit Delivery runes from the Precision and Inspiration rune sets. Of all the rune builds players chose for Senna vs Rammus battles, this order of runes resulted in the highest win rate. In fact, these runes provided a 47.4% win rate overall.
If you need to view Senna x Rammus tips and counter builds for a a specific division rank, feel free to choose one from the selection menu shown above. At first, the statistics and build suggestions shown are computed using every game completed with these champions.