Its FTY's fault

Items in their inventory when the game ended, across 14 games.

Item	Games	Of all games	Win rate
Black King Bar	7	50.0%	57.1%
Blink Dagger	6	42.9%	66.7%
Power Treads	5	35.7%	40.0%
Dust of Appearance	5	35.7%	20.0%
Manta Style	4	28.6%	25.0%
Arcane Boots	3	21.4%	100.0%
Soul Ring	3	21.4%	100.0%
Harpoon	3	21.4%	66.7%
Butterfly	3	21.4%	33.3%
Observer and Sentry Wards	2	14.3%	100.0%
Linken's Sphere	2	14.3%	50.0%
Swift Blink	2	14.3%	50.0%
Daedalus	2	14.3%	50.0%
Magic Wand	2	14.3%	0.0%
Aghanim's Scepter	2	14.3%	0.0%
Battle Fury	2	14.3%	0.0%
Glimmer Cape	1	7.1%	100.0%
Point Booster	1	7.1%	100.0%
Smoke of Deceit	1	7.1%	100.0%
Ring of Tarrasque	1	7.1%	100.0%
Force Staff	1	7.1%	100.0%
Null Talisman	1	7.1%	100.0%
Hand of Midas	1	7.1%	100.0%
Heart of Tarrasque	1	7.1%	100.0%
Abyssal Blade	1	7.1%	100.0%
Eye of Skadi	1	7.1%	100.0%
Quelling Blade	1	7.1%	100.0%
Iron Branch	1	7.1%	100.0%
Satanic	1	7.1%	100.0%
Nullifier	1	7.1%	100.0%
Diffusal Blade	1	7.1%	0.0%
Boots of Speed	1	7.1%	0.0%
Urn of Shadows	1	7.1%	0.0%
Bracer	1	7.1%	0.0%
Radiance	1	7.1%	0.0%
Skull Basher	1	7.1%	0.0%
Eul's Scepter of Divinity	1	7.1%	0.0%
Boots of Bearing	1	7.1%	0.0%
Refresher Orb	1	7.1%	0.0%
Greater Healing Lotus	1	7.1%	0.0%
Mask of Madness	1	7.1%	0.0%
Phase Boots	1	7.1%	0.0%
Blade Mail	1	7.1%	0.0%
Lotus Orb	1	7.1%	0.0%
Reaver	1	7.1%	0.0%