champions phase...

can riot write under each champions stats that it is early/mid/late game strong..i really want to know for example vayne is good early or mid.. or draven is good mid or late!!! and for example zed is weak early but good late i think rito is lazy and can't do so is there any site that can tell me which champions are strong or weak in which phase of the game!?? i really want to know all champion. ALL CHAMPIONS i think there MUST be a site that can help me! pls say that site address if you know!
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