The greatest champions not in lane to counter 刀锋之影 include 爆破鬼才, 逆羽, and 探险家. These champions are all great at countering 刀锋之影 with high win rates over 57%. Even if these 刀锋之影 counter picks are not taken opposite your position, it's not a good idea to choose him into one of these matchups. They will most often crush 刀锋之影.
Conversely, if the enemy team picks either 瓦洛兰之盾 or 圣锤之毅, you should seriously think about selecting him, as he easily wins against these champs with win rates over 52% against each ofthem.