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.
Powerball can be used as an effective escape mechanism.
Using taunt on a champion by your tower can cause the tower to attack your enemy.
Tremors and Defensive Ball Curl can be used late in the game to obliterate towers. If you're bogged down in a team fight, it is often valuable to break off and attack the buildings.
The Karthus Rammus synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Rammus, 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 large worsening in his KDA (ratio of kills and assists to deaths) when paired with Rammus. His KDA decreased from NaN to NaN. This negative change shows that Rammus helps Karthus perform worse in ranked League of Legends games. Yet, the small difference demonstrates that this performance change is only marginal.
When Karthus is paired with Rammus, he gets a marginal improvement in his full damage output. This could demonstrate that Rammus supports by providing cover for him to deal more damage or that his presence on the team also helps extend the round's duration. Similarly, when Karthus is played together with Rammus on the same team, he usually scores many fewer killing sprees than when he plays on his own. This is contrasting evidence that he is worse when playing with Rammus.
Moreover, when Karthus plays with Rammus on the same side, he often takes much less damage than when he plays alone. Getting dealt not as much damage could indicate that Rammus does a decent job of protecting Karthus in teamfights.
There is no perfect ally for Karthus that will 100% of the time be his top synergy. Yet, overall, Rammus is a great ally for Karthus. By playing on the same team as Karthus, he increases their win rate by 6.2% to 53.3%. This signals that there is an important strategic relationship between Karthus and Rammus that allows them to perform stronger together than without each other.
Rammus has a lower difficulty than Karthus. That means Karthus players don't need to be careful when lining up Rammus teammates to fight alongside, as they will require a lower level of skill to do well with you.
Playing cooperatively, Karthus players will likely see an overall large increase in your team’s capability to deal magic damage. Together, these champs can blast through enemies with magic damage.
In contrast, by aligning Karthus and Rammus together, you probably will not be giving your side much sustained damage output. We recommend you bring other champs on your team that helps cover this relative gap in their playstyle.
Regardless of the skill of your Rammus ally, you need to focus on increasing your income, outlasting your enemies, and taking down objectives. If you follow these simple suggestions, you should do well, regardless.
If you would like to truly master Karthus in order to work well with Rammus during both the early game and mid / late game phases of LoL rounds, you should keep reading to learn some more tips and tricks for this champion pairing. If you mind the build and stats presented here, you will increase your win rate significantly.
The most crucial items to use in your Karthus and Rammus synergy build include Liandry's Anguish, Rabadon's Deathcap, and Shadowflame. When Karthus incorporated at least these three finished items in his build, he did a lot better as an ally of Rammus than with most other commonly used item sets. In fact, Karthus had an average winrate of 53.3% when synergizing his build and playstyle to Rammus with these items in his kit.
To have the best likelihood of beating 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 rune combinations players picked for this team composition, this mixture of runes resulted in the top win rate. Notably, these runes provided a 53.3% win rate overall.
If you want to get Karthus with Rammus cooperations tips and builds for a a distinct player tier, feel free to choose one from the selection menu provided above. By default, the statistics and guides given are computed using all rounds completed with both champs.