Maybe

Items in their inventory when the game ended, across 18 games.

Item	Games	Of all games	Win rate
Power Treads	11	61.1%	27.3%
Blink Dagger	9	50.0%	33.3%
Manta Style	8	44.4%	37.5%
Magic Wand	6	33.3%	16.7%
Glimmer Cape	5	27.8%	60.0%
Tranquil Boots	4	22.2%	75.0%
Eye of Skadi	4	22.2%	50.0%
Aghanim's Scepter	4	22.2%	25.0%
Black King Bar	4	22.2%	0.0%
Butterfly	3	16.7%	66.7%
Sentry Ward	2	11.1%	100.0%
Battle Fury	2	11.1%	100.0%
Blade Mail	2	11.1%	50.0%
Bracer	2	11.1%	50.0%
Echo Sabre	2	11.1%	0.0%
Wraith Band	2	11.1%	0.0%
Mask of Madness	2	11.1%	0.0%
Crystalys	2	11.1%	0.0%
Heart of Tarrasque	1	5.6%	100.0%
Eul's Scepter of Divinity	1	5.6%	100.0%
Blood Grenade	1	5.6%	100.0%
Gleipnir	1	5.6%	100.0%
Aether Lens	1	5.6%	100.0%
Clarity	1	5.6%	100.0%
Skull Basher	1	5.6%	100.0%
Satanic	1	5.6%	100.0%
Desolator	1	5.6%	0.0%
Solar Crest	1	5.6%	0.0%
Observer Ward	1	5.6%	0.0%
Ghost Scepter	1	5.6%	0.0%
Arcane Boots	1	5.6%	0.0%
Dust of Appearance	1	5.6%	0.0%
Radiance	1	5.6%	0.0%
Oblivion Staff	1	5.6%	0.0%
Abyssal Blade	1	5.6%	0.0%
Bloodthorn	1	5.6%	0.0%
Dragon Lance	1	5.6%	0.0%
Eaglesong	1	5.6%	0.0%
Null Talisman	1	5.6%	0.0%
Kaya	1	5.6%	0.0%
Boots of Travel	1	5.6%	0.0%
Rod of Atos	1	5.6%	0.0%
Ogre Axe	1	5.6%	0.0%
Phase Boots	1	5.6%	0.0%
Assault Cuirass	1	5.6%	0.0%
Daedalus	1	5.6%	0.0%
Maelstrom	1	5.6%	0.0%
Quelling Blade	1	5.6%	0.0%