A falling lane rank does not prove a champion nerf
Before you publish that bot-lane report, look at the champion whose rank fell while the displayed win rate stayed unchanged. The chart says “decline”. Your manager will reasonably ask what declined. A rank drop accompanied by falling role share is a lane-migration candidate, not proof of a nerf. The rows provide neither an eligibility threshold nor the ranking formula, so attributing the movement to a threshold crossing would outrun the evidence. A relative rank can worsen because other champions moved ahead. Meanwhile, a champion's games can shift between lanes without producing a visible change in its lane-specific win percentage. That makes the debugging question more useful than the headline: did performance change, did lane participation change, or did the comparison change underneath you? Start by collecting every lane in the same scope. An ADC-only capture can't show whether the…
