There is no correlation between Wins and Cost and there are no clusters. The values are standardized.
Wins Cost
Radiance 3.898722 0.784024
Black King Bar 2.641272 0.220625
Blink Dagger 2.063110 -0.793494
Assault Cuirass 2.235145 0.826279
Phase Boots 1.638489 -1.216043
Soul Ring 0.844176 -1.607606
Bloodthorn 1.012745 1.600953
Power Treads 0.601432 -1.272383
Aghanim'S Shard 0.733662 -1.272383
Manta Style 0.380328 0.530494
Abyssal Blade 0.477659 1.502358
Sange And Yasha 0.329711 0.248795
Boots Of Travel 0.191390 -0.652644
Bracer -0.109116 -1.776626
Magic Wand -0.142463 -1.807613
Swift Blink 0.071978 1.769973
Skull Basher -0.268736 -0.441369
Overwhelming Blink -0.083111 1.769973
Monkey King Bar -0.359274 0.699514
Silver Edge -0.358440 1.009384
Orchid Malevolence -0.447313 -0.103330
Nullifier -0.502973 0.600919
Mjollnir -0.490306 1.037554
Arcane Boots -0.510321 -1.328723
Bottle -0.531951 -1.680848
Heart Of Tarrasque -0.494592 0.812194
Butterfly -0.502943 0.741769
Eye Of Skadi -0.544353 0.924874
Aghanim'S Scepter -0.542714 0.305135
Moon Shard -0.520025 0.192455
Shadow Blade -0.633715 -0.370944
Hand Of Midas -0.627486 -0.821664
Blade Mail -0.627726 -0.878004
Solar Crest -0.590231 -0.694899
Boots Of Travel 2 -0.583672 0.474154
Octarine Core -0.580317 0.530494
Linken'S Sphere -0.607140 0.530494
Pipe Of Insight -0.623479 -0.159670
Shiva'S Guard -0.619781 0.671344
Battle Fury -0.650080 0.265697
Disperser -0.649615 1.150234
Armlet Of Mordiggian -0.662881 -0.666729
Daedalus -0.650315 0.812194
Null Talisman -0.664959 -1.776626
Lotus Orb -0.659579 0.107945
Meteor Hammer -0.629376 -0.708984
Desolator -0.650838 -0.089245