The champions that counter Swain hardest in support are Brand (43.58%), Vel'Koz (43.85%) and Janna (44.12%) — those are Swain's own pooled win rates. The easiest matchups are Blitzcrank (52.69%), Alistar (51.09%) and Nautilus (50.75%).
35 researched matchup guides for Swain in support, most-played first. Win rates are Swain's side, pooled Emerald+ games sampled July 2026.
| Matchup | Win rate | Games | Favour |
|---|---|---|---|
| Swain vs Thresh | 47.67% | 10,055 | Leans Thresh |
| Swain vs Nautilus | 50.75% | 8,099 | Leans Swain |
| Swain vs Seraphine | 44.36% | 7,098 | Seraphine favoured |
| Swain vs Senna | 44.9% | 5,933 | Senna favoured |
| Swain vs Lulu | 45.68% | 5,700 | Leans Lulu |
| Swain vs Leona | 50.36% | 5,258 | Even |
| Swain vs Lux | 48.31% | 4,785 | Leans Lux |
| Swain vs Nami | 46.56% | 4,654 | Leans Nami |
| Swain vs Karma | 45.78% | 4,640 | Leans Karma |
| Swain vs Pyke | 46.78% | 4,624 | Leans Pyke |
| Swain vs Milio | 46.1% | 3,972 | Leans Milio |
| Swain vs Bard | 47.35% | 3,719 | Leans Bard |
| Swain vs Blitzcrank | 52.69% | 3,181 | Leans Swain |
| Swain vs Alistar | 51.09% | 3,179 | Leans Swain |
| Swain vs Yuumi | 46.32% | 2,973 | Leans Yuumi |
| Swain vs Morgana | 44.21% | 2,902 | Morgana favoured |
| Swain vs Soraka | 45.56% | 2,869 | Leans Soraka |
| Swain vs Braum | 48.27% | 2,768 | Leans Braum |
| Swain vs Xerath | 46.15% | 2,678 | Leans Xerath |
| Swain vs Vel'Koz | 43.85% | 2,634 | Vel'Koz favoured |
| Swain vs Brand | 43.58% | 2,600 | Brand favoured |
| Swain vs Tahm Kench | 48.98% | 2,458 | Leans Tahm Kench |
| Swain vs Rell | 47.47% | 2,374 | Leans Rell |
| Swain vs Rakan | 48.09% | 2,204 | Leans Rakan |
| Swain vs Janna | 44.12% | 2,178 | Janna favoured |
| Swain vs Zyra | 49.41% | 1,949 | Even |
| Swain vs Galio | 49.21% | 1,768 | Leans Galio |
| Swain vs Zilean | 47.84% | 1,733 | Leans Zilean |
| Swain vs Hwei | 48.47% | 1,700 | Leans Hwei |
| Swain vs Sona | 46.17% | 1,700 | Leans Sona |
| Swain vs Poppy | 47.34% | 1,426 | Leans Poppy |
| Swain vs Neeko | 50.61% | 1,237 | Even |
| Swain vs Maokai | 49.46% | 1,110 | Even |
| Swain vs Taric | 49.35% | 776 | Even |
| Swain vs Renata Glasc | 44.49% | 663 | Renata Glasc favoured |