A fully charged Vault Breaker will deal double damage. It's great for catching and finishing off fleeing enemies.
Relentless Force does full damage to anyone caught in the shockwave. Use it on minions in lane to hit enemies hiding behind them.
Cease and Desist is a powerful initiation tool, just remember not to get too far ahead of the rest of your team.
Lay Waste is very strong at farming minions and harassing enemy champions.
Ask your allies to help point out when you should use Requiem to get kills in different lanes.
The Vi Karthus synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Karthus, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Vi sees a large worsening in her KDA (ratio of kills and assists to deaths) when paired with Karthus. His KDA went down from NaN to NaN. This negative change shows that Karthus helps Vi perform poorer in competitive League of Legends rounds. Yet, the small difference proves that this performance change is only marginal.
When Vi is an ally to Karthus, she observes a little increase in her total damage dealt. This difference could demonstrate that Karthus supports by providing cover for her to deal more damage or that his allyship also helps increase the match's duration. Similarly, when Vi is played with Karthus on the same team, he usually scores many fewer killing sprees compared to when she plays without Karthus. This is contrasting evidence that she is worse when playing synergisticly with Karthus.
Additionally, when Vi plays with Karthus on the same side, she often takes a little more damage than when she plays alone. Receiving more damage could indicate that Karthus does a poor job of covering Vi in team fights.
There is no universally accepted best ally for Vi that will always be her #1 teammate. Yet, Karthus is a very typical ally for Vi. By locking into the same team as Vi, he drops their win rate by -0.5% to 51.1%. This proves that there is not really a strong bond between Vi and Karthus that results in them performing not as well together than without each other.
Karthus has a greater difficulty than Vi. That means Vi players need to be cautious when arranging Karthus allies to fight alongside, as they will need a greater level of skill to work well with you.
Fighting on the same side, Vi players should see an overall large increase in your team’s capability to deal magical damage. Together, these champs can blast through enemies with magic damage.
In contrast, by bringing Vi and Karthus together, you may not be providing your side much cover. We recommend you bring other champs on your team that neutralizes this relative gap in this pairing's capabilities.
Regardless of the skill of your Karthus ally, you should focus on maximizing your income, staying alive by avoiding foolish fights, and clearing objectives. If you do this, you will do well, regardless.
To truly master Vi in order to synergize with Karthus during both the lane and mid / late game phases of League of Legends matches, you should continue reading to learn additional tricks and insights into this champion pairing. If you use the build and suggestions presented above, you will grow your win rate by a lot.
The ideal items to focus on in your Vi and Karthus synergy build include Sterak's Gage, Black Cleaver, and Sundered Sky. When Vi combined at least these three great items in her build, she performed much better when fighting alongside Karthus than with many other typical item sets. In fact, Vi boasted an average winrate of 51.1% when playing alongside Karthus with these items in her kit.
To have the greatest chance of crushing your oponents, you should equip the Hail of Blades, Sudden Impact, Eyeball Collection, Relentless Hunter, Legend: Alacrity, and Triumph runes from the Domination and Precision rune sets. Of all the runes players chose for this champion pairing, this blending of runes resulted in the greatest win rate. Moreover, these runes gave a 51.1% winrate overall.
If you need to view Vi with Karthus synergy tips and builds for a an individual division rank, please choose one from the selection menu above. By default, the stats and build suggestions displayed are calculated using every match run with these champions.