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.
Using Blitzcrank's grab to pull an enemy into your tower range followed by a Power Fist will allow the tower to get several hits on them.
The 1-2-3 combo of Rocket Grab, Power Fist, and Static Field can devastate an individual opponent.
The Karthus Blitzcrank synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Blitzcrank, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Karthus sees a very large drop in his KDA (ratio of kills and assists to deaths) when paired with Blitzcrank. His KDA fell from NaN to NaN. This drop shows that Blitzcrank helps Karthus perform worse in competitive League games. Yet, the small difference proves that this performance change is not very impactful.
When Karthus is an ally to Blitzcrank, he gets a marginal improvement in his full damage dealt. This may demonstrate that Blitzcrank helps provide cover for him to dish out more damage or that his presence also helps increase the match's duration. Similarly, when Karthus is played alongside Blitzcrank on the same team, he usually scores many fewer killing sprees compared to when he plays without Blitzcrank. This is contrasting evidence that he is worse when playing with Blitzcrank.
Additionally, when Karthus plays with Blitzcrank on the same side, he often takes a little more damage than when he fights alone. Taking more damage may mean that Blitzcrank does a poor job of covering Karthus during teamfights.
There is no perfect champion pairing for Karthus that will always be his top synergy. Yet, overall, Blitzcrank is a pretty good ally for Karthus. By being on the same team as Karthus, he raises their win rate by 1.9% to 49.2%. This shows that there is a potentially meaningful strategic relationship between Karthus and Blitzcrank that allows them to perform better together than without each other.
Blitzcrank has a much lower diffuclty than Karthus. That means Karthus players don't need to be very careful when finding Blitzcrank teammates to go into battle on the same side as, as they will have to have a much lower level of skill to be able to cooperate well with you.
Working on the same side, you should expect to observe an overall large increase in your team’s capacity to deal magic damage. When paired, these champs can blast through enemies with magic damage.
In contrast, by grouping Karthus and Blitzcrank together, you probably will not be providing your other allies much attack damage. Plan to bring other champs on your team that neutralizes this hole in this pairing's capabilities.
Regardless of the ability of your Blitzcrank ally, you need to focus on increasing your income, warding to avoid ambushes, and clearing objectives. If you do this, you should do well anyway.
To truly master Karthus in order to pair well with Blitzcrank during both the lane and mid / late game phases of LoL rounds, you should keep reading to master additional tricks and insights into this champion pairing. If you pay attention to the build and suggestions shown here, you should grow your win rate significantly.
The most crucial finished items to have in your Karthus and Blitzcrank synergy build include Rabadon's Deathcap, Shadowflame, and Stormsurge. When Karthus combined at least these three items in his build, he performed a lot better when paired up with Blitzcrank than with many other commonly used builds. In fact, Karthus had an average win rate of 49.2% when playing alongside Blitzcrank with these items in his kit.
To have the highest likelihood of defeating your oponents, Karthus players should use the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Last Stand 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. In fact, these runes provided a 49.2% win rate overall.
If you need to see Karthus with Blitzcrank synergy tips and builds for a a distinct skill level, please select one from the selection menu provided above. At first, the statistics and build suggestions given are calculated using all rounds played with these champs.