Clusters opponents whose observed non-land cards overlap heavily, then reconstructs what they are likely playing. Similarity is the overlap coefficient: shared cards divided by the smaller of the two observed sets, so a game that revealed fewer cards is not penalised. Pick a format to avoid mixing Standard, Brawl, Explorer, drafts and tutorials.
| Opponents | Format | Overlap | Shared cards | Shared non-land cards |
|---|---|---|---|---|
| Ninjaman vs manabu94 | Standard | 60% | 3 | Ajani's Pridemate, Haliya, Guided by Light, Hinterland Sanctifier |
| KonGik vs Atlas Mario | Standard | 57% | 4 | Ajani's Pridemate, Hinterland Sanctifier, Leonin Vanguard, Sheltered by Ghosts |
| mike vs KonGik | Standard | 50% | 4 | Ajani's Pridemate, Healer's Hawk, Leonin Vanguard, The Theorist, Jace Beleren |
| Player 2 vs Dragon_Axolotl | Standard | 50% | 3 | Erode, No More Lies, Quick Study |
| Ninjaman vs KonGik | Standard | 43% | 3 | Ajani's Pridemate, Hinterland Sanctifier, Leonin Vanguard |
Lower the overlap threshold or the minimum shared cards to form a cluster from these pairs.