I'll take it

Items in their inventory when the game ended, across 16 games.

Item	Games	Of all games	Win rate
Power Treads	10	62.5%	70.0%
Black King Bar	7	43.8%	57.1%
Magic Wand	6	37.5%	66.7%
Blink Dagger	5	31.3%	80.0%
Eye of Skadi	5	31.3%	60.0%
Manta Style	5	31.3%	60.0%
Aghanim's Scepter	4	25.0%	50.0%
Phase Boots	4	25.0%	50.0%
Harpoon	3	18.8%	66.7%
Monkey King Bar	3	18.8%	66.7%
Blade Mail	3	18.8%	66.7%
Crystalys	3	18.8%	33.3%
Aether Lens	2	12.5%	100.0%
Circlet	2	12.5%	100.0%
Hurricane Pike	2	12.5%	100.0%
Desolator	2	12.5%	100.0%
Daedalus	2	12.5%	100.0%
Quelling Blade	2	12.5%	50.0%
Heart of Tarrasque	2	12.5%	0.0%
Dust of Appearance	2	12.5%	0.0%
Mithril Hammer	1	6.3%	100.0%
Battle Fury	1	6.3%	100.0%
Abyssal Blade	1	6.3%	100.0%
Butterfly	1	6.3%	100.0%
Witch Blade	1	6.3%	100.0%
Mjollnir	1	6.3%	100.0%
Force Staff	1	6.3%	100.0%
Ghost Scepter	1	6.3%	100.0%
Mask of Madness	1	6.3%	100.0%
Silver Edge	1	6.3%	100.0%
Octarine Core	1	6.3%	100.0%
Bracer	1	6.3%	100.0%
Bloodthorn	1	6.3%	100.0%
Falcon Blade	1	6.3%	0.0%
Soul Ring	1	6.3%	0.0%
Shiva's Guard	1	6.3%	0.0%
Sentry Ward	1	6.3%	0.0%
Orchid Malevolence	1	6.3%	0.0%
Arcane Blink	1	6.3%	0.0%
Soul Booster	1	6.3%	0.0%
Boots of Travel	1	6.3%	0.0%