I was told by a friend of mine that frozen mallet's slow doesn't stack with Sejuani's slow. Is this true? I never heard that an item's passive being eliminated by the champ you play.
The higher slow will kick in first, meaning that if you have frozen mallet's slow (40% on melee) then Sejuani's slow won't be in effect.
However, her frost will still be in effect and allow you to do more damage with her skills.
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