There is no correlation between Wins and Cost and there are no clusters. The values are standardized.
Wins Cost
Blade Mail 2.859021 -0.763350
Blink Dagger 2.432834 -0.673726
Phase Boots 1.953398 -1.121848
Black King Bar 1.460304 0.401768
Aghanim'S Shard 1.556249 -1.181598
Aghanim'S Scepter 1.077634 0.491393
Bracer 0.448880 -1.716357
Magic Wand -0.132535 -1.749220
Vanguard -0.210851 -1.002349
Heart Of Tarrasque 0.011728 1.029140
Bloodstone 0.013145 0.610892
Crimson Guard -0.204751 0.207582
Eternal Shroud -0.346468 -0.165853
Boots Of Travel -0.307730 -0.524351
Overwhelming Blink -0.333646 2.044884
Pipe Of Insight -0.440997 -0.001542
Lotus Orb -0.485968 0.282269
Shiva'S Guard -0.455435 0.879766
Kaya And Sange -0.560496 0.431643
Tranquil Boots -0.681746 -1.465409
Assault Cuirass -0.652669 1.044077
Power Treads -0.691007 -1.181598
Heaven'S Halberd -0.693488 0.103020
Veil Of Discord -0.708303 -1.106911
Octarine Core -0.676139 0.730391
Sange And Yasha -0.695704 0.431643
Linken'S Sphere -0.700919 0.730391
Refresher Orb -0.704985 0.969390
Boots Of Travel 2 -0.705449 0.670642
Arcane Blink -0.705115 2.044884
Eul'S Scepter Of Divinity -0.718787 -0.449664