Sivir's Boomerang Blade returns to her after reaching the max range, so you can shift position to hit enemies who would otherwise have evaded it.
Try saving Spell Shield for enemy abilities that can disable you such as stuns and roots.
Ricochet resets Sivir's basic attack timer on activation, so activating this immediately after landing a normal basic attack will maximize damage output.
The stat comparisons shown here show several valuable Sivir vs. Rell counter stats that may help you explain the differences and similarities between the pair. As an example, Sivir’s KDA ratio ([kills + assists] / deaths) of NaN is better than Rell’s ratio of NaN, indicating that Sivir may be more central to her team's team fighting potential than Rell. This observation is largely fueled by the difference in kills.
Sivir normally has a much larger longest killing spree than her counter does. Typically, she takes a similar amount of damage to Rell. This commonly reflects differing health capacities, but it can also show that the one champion has less mobility and thus is not able to escape additional harm when poked or engaged.
Both League champs are great. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Sivir usually fairs equally well when trying to fight Rell, with a 49.5% win rate. Therefore, Sivir makes an ok counter to Rell.
While Sivir does have a lower winrate than Rell, when they face off with one another, Sivir also has a much greater learning curve that makes her a more time consuming champion to learn. You still need to be cautious when picking Sivir into Rell.
Moreover, Sivir also has only a small amount of CC and other utility, a similar amount to Rell. This makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there is not a single best champion for every situation in League of Legends, in Sivir vs Rell matchups, Rell is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your teammates during teamfights.
Sivir is a somewhat poor counter to Rell. Focus your play on keeping up your CS and destroying objectives. If you can do that, you should do very well as Sivir against Rell.
If you would like to learn all of the intricacies of Sivir to counter Rell during both the lane and mid / late game phases of League of Legends, you should continue reading to learn a few extra tricks and insights into this matchup. If you listen to the build and stats presented here, you will increase your win rate by a lot and be closer to League of Legends pro players.
Sivir on average accumulates much more CS relative to Rell. Champions who on average don't get much CS usualy don't have to have much CS to be effective, such as support champions. These kinds of champions are capable of scaling well off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually require several high cost items to be effective. In either situation, try to surpass the values displayed on this page to do well.
The most important items to prioritize in your Sivir versus Rell build include Lord Dominik's Regards, Phantom Dancer, and Navori Quickblades. When Sivir bought at least these three items in her build, she did much better vs Rell than with most other typical counter builds. In fact, Sivir had an average win rate of 49.5% when countering Rell with this counter build.
To have the highest likelihood of coming out on top against Rell as Sivir, you should use the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Biscuit Delivery, and Magical Footwear runes from the Precision and Inspiration rune sets. Out of all the rune builds that we analyzed for Sivir vs Rell face-offs, this blending of runes yielded the highest win rate. Moreover, these runes provided a 49.5% winrate overall.
By default, tips, statistics, and builds on how to beat Rell as Sivir are presented for all ranked divisions. To scope the stats and builds to a specific skill level, you should use the selection menu located above.