Hmm... the runes that you have here reminds me of the typical runes of Ashe.... I have always used Press the Attack and Domination, or Dark Harvest and Precision with Caitlyn.... And for the build, it is quite typical, does that work even in Platinum?
If possible, would you please update this guide accordingly to the new shop? :)

Hi, is it possible that the max dmg combo isn't working anymore?
I tried it several times but couldn't even do it once.