Explain this to me

This table contains stats for heroes' picks and bans.
Rank is used to sort heroes by winrate, taking number of their picks and bans into account. Higher rank means the hero is stronger. Rev-Rank (Reverse Rank) is used to show the least effective heroes with the most number of matches.
Balance metric estimates how balanced the meta is (0 to 100)

Median hero picks (mp): 10 - Median hero bans (mb): 13 - Matches: 150

Remove low picks (0.9mp) Remove low bans (0.9mb)

Balance rank	Winrate	Pickrate	Contest Rate
62.3	85.1	40.5	37.2

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Troll Warlord	37	24.67%	100.00	24.76	15	86.67%	1.5	22	50.00%	1.7
Io	111	74.00%	99.05	74.29	29	65.52%	2.9	82	51.22%	6.3
Spirit Breaker	94	62.67%	98.10	65.71	25	64.00%	2.5	69	53.62%	5.3
Razor	107	71.33%	97.14	81.90	35	54.29%	3.5	72	54.17%	5.5
Storm Spirit	68	45.33%	96.19	54.29	25	56.00%	2.5	43	62.79%	3.3
Wraith King	74	49.33%	95.24	62.86	37	59.46%	3.7	37	54.05%	2.8
Pangolier	80	53.33%	94.29	66.67	38	57.89%	3.8	42	52.38%	3.2
Kunkka	55	36.67%	93.33	44.76	25	56.00%	2.5	30	66.67%	2.3
Faceless Void	40	26.67%	92.38	34.29	8	37.50%	0.8	32	78.13%	2.5
Templar Assassin	113	75.33%	91.43	88.57	33	57.58%	3.3	80	47.50%	6.2
Abaddon	15	10.00%	90.48	14.29	10	80.00%	1.0	5	60.00%	0.4
Tidehunter	77	51.33%	89.52	76.19	43	53.49%	4.3	34	52.94%	2.6
Grimstroke	71	47.33%	88.57	73.33	44	52.27%	4.4	27	55.56%	2.1
Lina	92	61.33%	87.62	87.62	32	56.25%	3.2	60	45.00%	4.6
Terrorblade	57	38.00%	86.67	60.95	17	47.06%	1.7	40	62.50%	3.1
Queen of Pain	127	84.67%	85.71	97.14	49	44.90%	4.9	78	48.72%	6.0
Bane	98	65.33%	84.76	91.43	67	49.25%	6.7	31	48.39%	2.4
Ember Spirit	68	45.33%	83.81	71.43	29	48.28%	2.9	39	58.97%	3.0
Morphling	93	62.00%	82.86	90.48	30	53.33%	3.0	63	46.03%	4.8
Mars	117	78.00%	81.90	95.24	54	42.59%	5.4	63	53.97%	4.8
Weaver	119	79.33%	80.95	96.19	45	44.44%	4.5	74	48.65%	5.7
Lycan	47	31.33%	80.00	47.62	13	53.85%	1.3	34	58.82%	2.6
Bloodseeker	51	34.00%	79.05	58.10	15	53.33%	1.5	36	55.56%	2.8
Rubick	39	26.00%	78.10	46.67	23	60.87%	2.3	16	43.75%	1.2
Dark Seer	32	21.33%	77.14	36.19	10	60.00%	1.0	22	59.09%	1.7
Batrider	48	32.00%	76.19	59.05	10	50.00%	1.0	38	55.26%	2.9
Puck	63	42.00%	75.24	78.10	13	46.15%	1.3	50	52.00%	3.8
Disruptor	40	26.67%	74.29	56.19	31	54.84%	3.1	9	44.44%	0.7
Snapfire	61	40.67%	73.33	83.81	50	44.00%	5.0	11	90.91%	0.8
Medusa	58	38.67%	72.38	75.24	16	43.75%	1.6	42	54.76%	3.2
Hoodwink	16	10.67%	71.43	20.95	13	69.23%	1.3	3	33.33%	0.2
Night Stalker	63	42.00%	70.48	80.95	17	52.94%	1.7	46	45.65%	3.5
Monkey King	115	76.67%	69.52	100.00	33	33.33%	3.3	82	48.78%	6.3
Beastmaster	52	34.67%	68.57	68.57	9	77.78%	0.9	43	39.53%	3.3
Nyx Assassin	45	30.00%	67.62	63.81	17	52.94%	1.7	28	50.00%	2.2
Death Prophet	96	64.00%	66.67	99.05	49	36.73%	4.9	47	55.32%	3.6
Juggernaut	17	11.33%	65.71	21.90	8	62.50%	0.8	9	66.67%	0.7
Doom	30	20.00%	64.76	42.86	14	57.14%	1.4	16	50.00%	1.2
Void Spirit	47	31.33%	63.81	72.38	25	44.00%	2.5	22	59.09%	1.7
Shadow Shaman	6	4.00%	62.86	7.62	6	83.33%	0.6	0	0.00%	0.0
Outworld Destroyer	91	60.67%	61.90	98.10	15	46.67%	1.5	76	40.79%	5.8
Shadow Demon	20	13.33%	60.95	29.52	8	50.00%	0.8	12	75.00%	0.9
Phantom Assassin	32	21.33%	60.00	52.38	18	55.56%	1.8	14	42.86%	1.1
Tusk	42	28.00%	59.05	79.05	29	44.83%	2.9	13	53.85%	1.0
Brewmaster	12	8.00%	58.10	16.19	4	75.00%	0.4	8	62.50%	0.6
Ursa	34	22.67%	57.14	57.14	12	58.33%	1.2	22	40.91%	1.7
Viper	31	20.67%	56.19	48.57	8	37.50%	0.8	23	60.87%	1.8
Invoker	27	18.00%	55.24	43.81	10	40.00%	1.0	17	64.71%	1.3
Broodmother	50	33.33%	54.29	89.52	11	63.64%	1.1	39	30.77%	3.0
Phantom Lancer	16	10.67%	53.33	26.67	3	66.67%	0.3	13	53.85%	1.0
Oracle	6	4.00%	52.38	8.57	3	100.00%	0.3	3	33.33%	0.2
Drow Ranger	41	27.33%	51.43	86.67	10	30.00%	1.0	31	48.39%	2.4
Mirana	21	14.00%	50.48	51.43	15	46.67%	1.5	6	50.00%	0.5
Undying	16	10.67%	49.52	39.05	12	50.00%	1.2	4	50.00%	0.3
Ogre Magi	39	26.00%	48.57	93.33	36	36.11%	3.6	3	66.67%	0.2
Tinker	10	6.67%	47.62	20.00	5	80.00%	0.5	5	20.00%	0.4
Clockwerk	11	7.33%	46.67	27.62	9	55.56%	0.9	2	50.00%	0.2
Dark Willow	21	14.00%	45.71	61.90	15	46.67%	1.5	6	33.33%	0.5
Earthshaker	13	8.67%	44.76	32.38	8	62.50%	0.8	5	20.00%	0.4
Leshrac	19	12.67%	43.81	45.71	9	55.56%	0.9	10	30.00%	0.8
Legion Commander	29	19.33%	42.86	77.14	10	40.00%	1.0	19	42.11%	1.5
Lifestealer	40	26.67%	41.90	92.38	8	37.50%	0.8	32	37.50%	2.5
Lion	26	17.33%	40.95	82.86	20	40.00%	2.0	6	33.33%	0.5
Luna	30	20.00%	40.00	85.71	12	41.67%	1.2	18	33.33%	1.4
Tiny	6	4.00%	39.05	12.38	3	66.67%	0.3	3	66.67%	0.2
Anti-Mage	24	16.00%	38.10	64.76	3	33.33%	0.3	21	42.86%	1.6
Magnus	5	3.33%	37.14	11.43	4	75.00%	0.4	1	0.00%	0.1
Treant Protector	11	7.33%	36.19	37.14	9	44.44%	0.9	2	50.00%	0.2
Windranger	17	11.33%	35.24	70.48	15	40.00%	1.5	2	0.00%	0.2
Enchantress	11	7.33%	34.29	35.24	7	57.14%	0.7	4	0.00%	0.3
Skywrath Mage	2	1.33%	33.33	6.67	1	100.00%	0.1	1	100.00%	0.1
Pugna	2	1.33%	33.33	6.67	1	100.00%	0.1	1	100.00%	0.1
Ancient Apparition	18	12.00%	31.43	67.62	7	28.57%	0.7	11	45.45%	0.8
Naga Siren	17	11.33%	30.48	49.52	1	0.00%	0.1	16	43.75%	1.2
Phoenix	11	7.33%	29.52	40.00	6	33.33%	0.6	5	60.00%	0.4
Silencer	12	8.00%	28.57	50.48	9	44.44%	0.9	3	0.00%	0.2
Sand King	5	3.33%	27.62	17.14	4	50.00%	0.4	1	100.00%	0.1
Riki	5	3.33%	26.67	13.33	2	50.00%	0.2	3	66.67%	0.2
Shadow Fiend	12	8.00%	25.71	55.24	8	37.50%	0.8	4	25.00%	0.3
Bristleback	7	4.67%	24.76	25.71	4	50.00%	0.4	3	33.33%	0.2
Jakiro	9	6.00%	23.81	41.90	7	42.86%	0.7	2	0.00%	0.2
Dragon Knight	7	4.67%	22.86	30.48	5	40.00%	0.5	2	50.00%	0.2
Centaur Warrunner	1	0.67%	21.90	4.76	1	100.00%	0.1	0	0.00%	0.0
Sniper	1	0.67%	21.90	4.76	1	100.00%	0.1	0	0.00%	0.0
Clinkz	1	0.67%	21.90	4.76	1	100.00%	0.1	0	0.00%	0.0
Witch Doctor	1	0.67%	21.90	4.76	1	100.00%	0.1	0	0.00%	0.0
Lich	1	0.67%	21.90	4.76	1	100.00%	0.1	0	0.00%	0.0
Timbersaw	15	10.00%	17.14	84.76	7	28.57%	0.7	8	25.00%	0.6
Gyrocopter	6	4.00%	16.19	28.57	4	50.00%	0.4	2	0.00%	0.2
Sven	4	2.67%	15.24	15.24	2	50.00%	0.2	2	50.00%	0.2
Dawnbreaker	10	6.67%	14.29	69.52	6	33.33%	0.6	4	0.00%	0.3
Visage	7	4.67%	13.33	38.10	3	33.33%	0.3	4	25.00%	0.3
Venomancer	3	2.00%	12.38	19.05	2	50.00%	0.2	1	0.00%	0.1
Slardar	7	4.67%	11.43	33.33	0	0.00%	0.0	7	28.57%	0.5
Earth Spirit	5	3.33%	10.48	40.95	4	25.00%	0.4	1	0.00%	0.1
Spectre	7	4.67%	9.52	53.33	3	0.00%	0.3	4	50.00%	0.3
Winter Wyvern	6	4.00%	8.57	60.00	5	20.00%	0.5	1	0.00%	0.1
Chaos Knight	8	5.33%	7.62	80.00	5	0.00%	0.5	3	66.67%	0.2
Slark	11	7.33%	6.67	94.29	1	0.00%	0.1	10	10.00%	0.8
Enigma	2	1.33%	5.71	23.81	1	0.00%	0.1	1	0.00%	0.1
Axe	2	1.33%	5.71	23.81	1	0.00%	0.1	1	0.00%	0.1
Elder Titan	2	1.33%	3.81	31.43	2	0.00%	0.2	0	0.00%	0.0
Underlord	1	0.67%	2.86	18.10	1	0.00%	0.1	0	0.00%	0.0
Necrophos	1	0.67%	1.90	10.48	0	0.00%	0.0	1	0.00%	0.1
Nature's Prophet	1	0.67%	1.90	10.48	0	0.00%	0.0	1	0.00%	0.1