Karthus

Karthus is an AP mage in the jungle, and on patch 16.11 they grade out as a solid mid-tier pick — a 49.5% win rate, 1.4% pick rate, 16,000 ranked games sampled. On the power curve, Karthus is a scaling champion: comparatively weak early, but one of the strongest picks on the map once core items come online — so the plan is to survive the laning phase and take the game over late.

How Karthus wins: winning the wave and turning push priority into map control, and grouped 5-v-5 teamfights, where Karthus tips the fight. The kit grades 10/10 waveclear, 9/10 teamfighting. Karthus grades low on disengage and engage (3/10, 2/10), so don't take fights that turn on those dimensions.

The most-played core build is Blackfire Torch, Shadowflame, Rabadon's Deathcap, which holds a 44.3% win rate across 980 games this patch. Set the enemy team at the top of the page to see how the path shifts against that comp.

The matchup to respect is Lux, where Karthus sits at just 40.3%, the lane swings the other way into Anivia (54.7%), and on the team side, Karthus gains the most from a Shaco (+10.6% pair win rate).