I'm losing my mind because of 5.5 karma adventure

I just feel like it's impossible to win, with the champs I have and especially with my luck.

I finished the adventure once only and that was with my by far favourite champ in path - samira but for the bandle and pnz champs I have no idea what to do

I've already tried multiple runs od Norra, but she can't possibly create portals and then she just gets absolutely blown up by the nullshit named Anivia midboss. Also tried heimer, which I thought would work since i have his 6* but when your opponent can just buried in ice of ionia you it's frustrating as hell.

Any tips?

I just feel like it's impossible to win, with the champs I have and especially with my luck.

I finished the adventure once only and that was with my by far favourite champ in path - samira but for the bandle and pnz champs I have no idea what to do

I've already tried multiple runs od Norra, but she can't possibly create portals and then she just gets absolutely blown up by the nullshit named Anivia midboss. Also tried heimer, which I thought would work since i have his 6* but when your opponent can just buried in ice of ionia you it's frustrating as hell.

Any tips?