Is the requirement Attack or Attack%? It needs to be exact. 

Attack %

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I used one champion at a time...

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This is the mission...

Need help progress mission sewers of amoc stage 6 can't figure how to complete this mission 

Please take a screenshot of the mission and will try to help you. :)

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why u can't complicate this mission?????

sorry it's keyboard mistake I meant why I can't complete this mission I trying to do that like a million times 

hello,

assuming you're doing the right stage it's just going to be a matter of variance and it will just take time to get those to drop. 

they need to be more espefic i being trying to do this mission for the longest