The best champions not in lane to counter Morgana include Zeri, Kai'Sa, and Xayah. These champions are all good at countering Morgana with win rates over 53%. Even if these Morgana counter picks are not used in the same position as you, it's not smart to play her into these matchups. They will most often destroy Morgana.
Yet, if the enemy team choses either Aurelion Sol or Ivern, you should strongly think about choosing her, as she easily dominates these champs with win rates over 54% against each ofthem.
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