Lead your enemy when targeting with Noxious Blast to ensure the hit.
Use Twin Fang on poisoned stationary targets like monsters and units stunned by her Petrifying Gaze for maximum damage.
Vel'Koz has fairly low mobility and is vulnerable to ganks.
Vel'Koz is very dangerous if left alone in a fight. Try to focus him down early.
Life Form Disintegration Ray can be interrupted by stuns, silences and knockups.
The stats shown on this page feature several vital Cassiopeia versus Vel'Koz counter stats that may help us appreciate the differences between the two. For instance, Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is more than Vel'Koz’s KDA ratio of NaN, showing that Cassiopeia may be more central to her team's team fighting capacity than Vel'Koz..
Cassiopeia typically has a similar longest killing spree as her enemy does. Commonly, she receives more damage than Vel'Koz. This typically indicates different amounts of tankyness; however, it can also show that the one champion has less mobility and thus is unable to kite away from additional damage when poked or engaged.
Both League champs are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Cassiopeia usually fairs equally well when facing off against Vel'Koz, with a 49.4% win rate. As a result, Cassiopeia makes an ok counter for Vel'Koz.
While Cassiopeia does have a lower win rate than Vel'Koz, when on opposite teams, Cassiopeia also has a greater learning curve that makes her a more time consuming champ to learn. You still need to be cautious when picking Cassiopeia into Vel'Kozas her relative depth means that you may not be able to unleash her full potential without a significant amount of practice beforehand.
Additionally, Cassiopeia has a good amount of CC and other utility, a similar amount to Vel'Koz. This often makes her just as valuable during team fights, especially when facing champions with a ton of burst damage.
While there is not a single best champion in League of Legends, in Cassiopeia vs Vel'Koz matchups, Vel'Koz is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your team members during teamfights.
Cassiopeia is a somewhat poor counter to Vel'Koz. Focus your play on increasing your gold income and taking out objectives. If you can do that, you should be able to stand on your own as Cassiopeia against Vel'Koz.
If you would like to truly master Cassiopeia in order to counter Vel'Koz during both the early game 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 mind the build and stats shown above, you should grow your win rate by a lot and be that much closer to League of Legends pro players.
Cassiopeia often picks up more CS relative to Vel'Koz. Champs who on average don't earn many minion kills usualy don't need much CS to be effective, such as supports. These kinds of champions are capable of scaling properly off of their skills, stats, 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 numbers displayed here to do well.
The top items to focus on in your Cassiopeia versus Vel'Koz build include Seraph's Embrace, Rylai's Crystal Scepter, and Liandry's Torment. When Cassiopeia incorporated at least these three items in her build, she performed significantly better when facing Vel'Koz than with most other typical counter builds. In fact, Cassiopeia had an average win rate of 49.4% when countering Vel'Koz with this build.
To have the best likelihood of crushing Vel'Koz as Cassiopeia, Cassiopeia players should use the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Manaflow Band, and Transcendence runes from the Precision and Sorcery rune sets. Of all the rune sets players picked for Cassiopeia vs Vel'Koz counters, this combo of runes resulted in the greatest win rate. Notably, these runes gave a 49.4% winrate overall.
By default, tips, stats, and builds on how to beat Vel'Koz as Cassiopeia are presented for all ranked divisions combined. If you want to scope the stats and builds to a distinct division, you can use the selection menu earlier on the page.