Explosive Arrow Champion Suggestions

Hello experts,

I just started red maps with this build https://pobb.in/cTg-R_Fk7-RD. I would like to improve it to get to 95, but I am not entirely sure what to prioritise (better bow, boots etc.). Any suggestions on what items I should buy next is greatly appreciated (or changes to the tree).

Thanks!

look up zizeran on youtube his ea build is the gold standard...