Karthus Build, Counter and 5v5 Team Stats

The build overview below shows the most common final items, rune pages and early completed items squads choose on Karthus. Because team games snowball differently from solo lanes, popularity and winrate are shown separately — a frequent item is not always the highest winrate choice when your five-stack plays around coordinated objectives.

Karthus is a Jungle pick in our tracked 5v5 team pool with a 51.3% winrate, 0.4% pick rate and 1.2% ban rate on patch all (Emerald+). Based on 113 coordinated picks from real squad games, this page highlights draft fit, role usage and team patterns rather than solo queue habits. Karthus currently ranks C tier in this filtered sample.

Karthus's 5v5 winrate sits at 51.3% across 113 tracked picks, with daily trend charts below showing how pick, ban and win rates evolve. Patch markers help you spot whether recent balance changes shifted the champion's team value — without claiming live patch accuracy beyond what our sample supports.

Against Malphite, Karma, Shen, Karthus tends to lose more than its baseline winrate in tracked 5v5 games. Use these team matchup reads when planning bans and lane assignments — they reflect how coordinated squads actually struggle, not theoretical lane matchups from solo stats sites.

Karthus pairs best with Yone, KSante, Xerath in our 5v5 sample — champions that lift the team's winrate when drafted together. Synergy lift is measured against Karthus's own winrate, so you see which allies genuinely amplify coordinated play rather than generic duo recommendations.