Malz really isnt that good honestly, brand jg is better than malz imo. Malz is good against mages in the mid lane but his passive isnt that good in teamfights, i feel like he is a lot stronger for sure but he isn't op I don't think. The new jungle item felt really weak for me when i tried it on nocturne, but I don't play yi/trynd/etc jungle so I don't know how good it really is.