MacroMind matchup data: real ranked games, not opinions
Karthus vs Smolder
What is Karthus's win rate vs Smolder?
In ADC, Karthus wins 54% against Smolder across 372 observed ranked games.
Global ranked sample: games from every region and every rank pooled together, not one server's stats. Data runs through patch 26.12; curves updated 2026-08-07.
By 15 minutes the median game has Karthus ahead by 497 gold.
Karthus at 15:00
- Gold: +497
- CS: +9
- XP: +451
Typical gap to Smolder, from 371 games that reached 15:00.
Does Karthus counter Smolder?
Too close to call. Karthus sits at 54% over 372 games, so neither pick counters the other here. The lane goes to whoever wins the spots below, like the gold lead at 10:00 or staying alive until 15:00, so play for those and let the pick argument go.
How to beat Smolder as Karthus
When Karthus is ahead in gold at 10:00, this matchup runs 62% over 242 games; behind, it drops to 40% over 129.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 62% | 242 |
| Behind in gold at 10:00 | 40% | 129 |
| First blood | 64% | 174 |
| +kills at 10:00 | 63% | 182 |
| +CS at 10:00 | 62% | 229 |
| 0 deaths at 10:00 | 58% | 52 |
The median first death in this lane comes at 4:11; the level 6 spike lands around 7:09. Respect the all-in window until your spike is online.
What does Karthus build in ADC?
Into Smolder specifically, Karthus finishes Blackfire Torch first most often: 58.0% over 174 games of this matchup.
The most-finished core in this exact matchup is Blackfire Torch, Shadowflame, Rabadon's Deathcap: 55.2% across 58 games.
The most-finished Karthus core is Blackfire Torch, Shadowflame, Rabadon's Deathcap: 58.3% across 949 games when all three got done. All matchups, patches 26.1-26.12.
Most games start Doran's Ring + Health Potion + Health Potion; the first finished item is usually Blackfire Torch (3,479 games).
Skill plan: Karthus players max Q first and take Q at level 1.