Helix.

Items in their inventory when the game ended, across 5,186 games.

Item	Games	Of all games	Win rate
Magic Wand	3,247	62.6%	50.8%
Tranquil Boots	1,671	32.2%	55.8%
Observer and Sentry Wards	1,306	25.2%	35.4%
Aghanim's Scepter	1,044	20.1%	60.2%
Blink Dagger	993	19.1%	54.6%
Arcane Boots	971	18.7%	54.1%
Dust of Appearance	903	17.4%	54.4%
Boots of Speed	777	15.0%	41.4%
Smoke of Deceit	722	13.9%	50.7%
Glimmer Cape	681	13.1%	60.8%
Force Staff	667	12.9%	58.0%
Power Treads	593	11.4%	48.6%
Aether Lens	557	10.7%	61.8%
Black King Bar	538	10.4%	52.2%
Ghost Scepter	430	8.3%	59.3%
Eul's Scepter of Divinity	428	8.3%	54.0%
Sentry Ward	421	8.1%	53.9%
Observer Ward	404	7.8%	46.8%
Hand of Midas	390	7.5%	37.7%
Solar Crest	298	5.7%	61.1%
Maelstrom	288	5.6%	47.2%
Holy Locket	282	5.4%	65.6%
Shiva's Guard	278	5.4%	67.3%
Bottle	277	5.3%	37.5%
Infused Raindrops	255	4.9%	64.7%
Phase Boots	249	4.8%	41.0%
Bracer	239	4.6%	46.9%
Boots of Travel	233	4.5%	64.8%
Skull Basher	222	4.3%	59.9%
Clarity	204	3.9%	51.0%
Spirit Vessel	201	3.9%	61.2%
Refresher Orb	200	3.9%	62.0%
Diffusal Blade	190	3.7%	51.6%
Null Talisman	189	3.6%	38.1%
Ring of Basilius	188	3.6%	44.1%
Guardian Greaves	185	3.6%	71.9%
Meteor Hammer	171	3.3%	57.3%
Lotus Orb	168	3.2%	53.0%
Quelling Blade	153	3.0%	33.3%
Scythe of Vyse	150	2.9%	64.0%
Headdress	149	2.9%	51.7%
Wind Lace	140	2.7%	40.0%
Mekansm	133	2.6%	48.9%
Desolator	129	2.5%	65.9%
Urn of Shadows	127	2.4%	48.8%
Pipe of Insight	125	2.4%	71.2%
Orb of Venom	123	2.4%	39.0%
Eye of Skadi	120	2.3%	59.2%
Orb of Corrosion	119	2.3%	50.4%
Town Portal Scroll	118	2.3%	47.5%
Circlet	115	2.2%	43.5%
Vladmir's Offering	109	2.1%	71.6%
Cloak	104	2.0%	33.7%
Heaven's Halberd	100	1.9%	47.0%
Enchanted Mango	95	1.8%	31.6%
Soul Ring	93	1.8%	51.6%
Manta Style	93	1.8%	47.3%
Veil of Discord	92	1.8%	66.3%
Monkey King Bar	88	1.7%	61.4%
Daedalus	86	1.7%	60.5%