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): 41 - Median hero bans (mb): 50 - Matches: 597

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

Balance rank	Winrate	Pickrate	Contest Rate
81.1	93.8	69.4	66.9

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Nature's Prophet	302	50.59%	100.00	77.49	103	54.37%	2.5	199	56.78%	4.0
Io	91	15.24%	98.49	47.32	31	77.42%	0.8	60	51.67%	1.2
Terrorblade	248	41.54%	98.02	73.98	80	53.75%	2.0	168	58.33%	3.4
Techies	169	28.31%	94.13	68.72	86	60.47%	2.1	83	49.40%	1.7
Dawnbreaker	141	23.62%	93.70	63.82	55	58.18%	1.3	86	58.14%	1.7
Batrider	302	50.59%	93.53	83.48	78	47.44%	1.9	224	55.80%	4.5
Pangolier	375	62.81%	93.29	90.40	140	45.71%	3.4	235	56.17%	4.7
Ancient Apparition	83	13.90%	93.03	51.17	41	65.85%	1.0	42	54.76%	0.8
Treant Protector	273	45.73%	92.28	82.58	127	55.91%	3.1	146	46.58%	2.9
Naga Siren	230	38.53%	91.98	77.27	51	50.98%	1.2	179	55.31%	3.6
Monkey King	155	25.96%	91.78	67.70	52	57.69%	1.3	103	55.34%	2.1
Death Prophet	225	37.69%	91.11	78.31	85	50.59%	2.1	140	56.43%	2.8
Spirit Breaker	229	38.36%	90.88	79.05	90	51.11%	2.2	139	55.40%	2.8
Ember Spirit	368	61.64%	90.36	92.77	143	48.25%	3.5	225	50.67%	4.5
Disruptor	191	31.99%	89.08	76.93	109	59.63%	2.7	82	36.59%	1.6
Riki	60	10.05%	88.65	45.53	29	68.97%	0.7	31	51.61%	0.6
Undying	248	41.54%	88.44	83.69	106	50.00%	2.6	142	52.82%	2.8
Tusk	220	36.85%	88.19	81.28	120	52.50%	2.9	100	50.00%	2.0
Beastmaster	347	58.12%	87.78	93.47	115	54.78%	2.8	232	42.67%	4.6
Silencer	146	24.46%	86.42	72.98	87	55.17%	2.1	59	49.15%	1.2
Doom	244	40.87%	85.60	85.89	93	49.46%	2.3	151	50.33%	3.0
Tidehunter	101	16.92%	84.77	63.33	40	55.00%	1.0	61	57.38%	1.2
Timbersaw	155	25.96%	84.67	75.09	64	50.00%	1.6	91	56.04%	1.8
Skywrath Mage	154	25.80%	84.24	76.54	94	51.06%	2.3	60	55.00%	1.2
Wraith King	58	9.72%	84.13	49.89	35	60.00%	0.9	23	60.87%	0.5
Templar Assassin	192	32.16%	84.12	80.70	62	46.77%	1.5	130	54.62%	2.6
Faceless Void	153	25.63%	84.03	74.33	41	51.22%	1.0	112	53.57%	2.2
Legion Commander	143	23.95%	83.81	73.45	52	55.77%	1.3	91	49.45%	1.8
Clockwerk	145	24.29%	83.50	75.98	94	46.81%	2.3	51	70.59%	1.0
Invoker	206	34.51%	82.95	83.64	63	53.97%	1.5	143	46.15%	2.9
Pugna	114	19.10%	82.94	69.57	61	55.74%	1.5	53	49.06%	1.1
Anti-Mage	75	12.56%	82.64	53.47	12	75.00%	0.3	63	52.38%	1.3
Phoenix	155	25.96%	82.51	77.42	69	52.17%	1.7	86	50.00%	1.7
Bristleback	146	24.46%	82.28	75.51	53	49.06%	1.3	93	54.84%	1.9
Drow Ranger	112	18.76%	81.94	67.98	33	42.42%	0.8	79	63.29%	1.6
Puck	211	35.34%	81.63	85.62	65	50.77%	1.6	146	47.26%	2.9
Dazzle	124	20.77%	81.24	70.24	21	71.43%	0.5	103	45.63%	2.1
Medusa	147	24.62%	81.11	76.13	40	55.00%	1.0	107	48.60%	2.1
Weaver	50	8.38%	80.99	48.02	30	56.67%	0.7	20	70.00%	0.4
Earthshaker	66	11.06%	80.89	56.61	39	58.97%	1.0	27	51.85%	0.5
Storm Spirit	227	38.02%	80.85	88.68	84	48.81%	2.0	143	46.85%	2.9
Kunkka	151	25.29%	80.83	77.80	54	48.15%	1.3	97	53.61%	1.9
Bloodseeker	272	45.56%	80.66	93.36	71	43.66%	1.7	201	48.76%	4.0
Void Spirit	112	18.76%	80.31	72.21	68	52.94%	1.7	44	50.00%	0.9
Tiny	162	27.14%	80.26	82.08	109	49.54%	2.7	53	49.06%	1.1
Primal Beast	230	38.53%	80.25	89.61	84	45.24%	2.0	146	50.00%	2.9
Lycan	159	26.63%	80.01	79.82	53	50.94%	1.3	106	49.06%	2.1
Dark Seer	128	21.44%	79.73	73.96	39	46.15%	1.0	89	56.18%	1.8
Lina	168	28.14%	79.20	81.56	43	48.84%	1.0	125	49.60%	2.5
Slark	205	34.34%	78.83	86.98	40	45.00%	1.0	165	49.09%	3.3
Night Stalker	38	6.37%	78.60	38.32	16	68.75%	0.4	22	54.55%	0.4
Morphling	189	31.66%	78.55	85.99	65	53.85%	1.6	124	41.94%	2.5
Alchemist	77	12.90%	78.14	63.22	41	48.78%	1.0	36	66.67%	0.7
Broodmother	263	44.05%	77.88	94.71	37	51.35%	0.9	226	43.81%	4.5
Abaddon	39	6.53%	77.56	38.19	12	75.00%	0.3	27	51.85%	0.5
Rubick	293	49.08%	77.40	100.00	184	44.02%	4.5	109	44.95%	2.2
Huskar	46	7.71%	77.05	42.04	8	75.00%	0.2	38	55.26%	0.8
Spectre	83	13.90%	76.94	65.11	33	63.64%	0.8	50	40.00%	1.0
Clinkz	53	8.88%	76.83	53.41	31	70.97%	0.8	22	18.18%	0.4
Chaos Knight	152	25.46%	76.26	83.00	64	51.56%	1.6	88	43.18%	1.8
Shadow Fiend	100	16.75%	75.84	71.81	41	48.78%	1.0	59	54.24%	1.2
Muerta	115	19.26%	75.74	76.66	58	51.72%	1.4	57	45.61%	1.1
Windranger	94	15.75%	75.35	71.20	45	46.67%	1.1	49	59.18%	1.0
Earth Spirit	107	17.92%	75.18	75.00	51	50.98%	1.2	56	48.21%	1.1
Keeper of the Light	108	18.09%	73.10	78.08	61	47.54%	1.5	47	51.06%	0.9
Magnus	119	19.93%	73.10	80.83	69	53.62%	1.7	50	32.00%	1.0
Sniper	69	11.56%	73.09	61.43	19	52.63%	0.5	50	54.00%	1.0
Mirana	146	24.46%	71.87	88.15	102	49.02%	2.5	44	29.55%	0.9
Queen of Pain	135	22.61%	71.82	83.63	45	46.67%	1.1	90	46.67%	1.8
Chen	34	5.70%	71.64	40.02	14	71.43%	0.3	20	45.00%	0.4
Dark Willow	79	13.23%	70.94	73.27	61	50.82%	1.5	18	38.89%	0.4
Leshrac	102	17.09%	70.57	77.68	42	47.62%	1.0	60	48.33%	1.2
Vengeful Spirit	89	14.91%	69.77	76.69	57	47.37%	1.4	32	50.00%	0.6
Grimstroke	121	20.27%	69.35	84.81	65	50.77%	1.6	56	33.93%	1.1
Sven	100	16.75%	68.63	80.53	57	42.11%	1.4	43	58.14%	0.9
Centaur Warrunner	111	18.59%	68.48	82.59	50	46.00%	1.2	61	45.90%	1.2
Witch Doctor	48	8.04%	68.36	57.20	25	60.00%	0.6	23	39.13%	0.5
Oracle	33	5.53%	67.92	41.78	13	76.92%	0.3	20	35.00%	0.4
Crystal Maiden	81	13.57%	67.34	77.02	57	43.86%	1.4	24	62.50%	0.5
Necrophos	54	9.05%	66.52	59.36	15	60.00%	0.4	39	46.15%	0.8
Ursa	157	26.30%	66.15	93.46	48	37.50%	1.2	109	46.79%	2.2
Enchantress	163	27.30%	66.06	95.45	71	36.62%	1.7	92	50.00%	1.8
Troll Warlord	79	13.23%	65.89	74.83	33	45.45%	0.8	46	50.00%	0.9
Lone Druid	71	11.89%	65.54	69.30	17	58.82%	0.4	54	42.59%	1.1
Brewmaster	125	20.94%	65.34	87.31	30	53.33%	0.7	95	37.89%	1.9
Hoodwink	93	15.58%	64.63	83.42	62	40.32%	1.5	31	61.29%	0.6
Lifestealer	73	12.23%	63.85	73.79	27	44.44%	0.7	46	50.00%	0.9
Shadow Demon	120	20.10%	63.20	90.31	55	36.36%	1.3	65	52.31%	1.3
Viper	48	8.04%	62.08	59.24	13	46.15%	0.3	35	54.29%	0.7
Marci	58	9.72%	61.64	70.58	31	38.71%	0.8	27	66.67%	0.5
Luna	56	9.38%	61.30	70.46	33	48.48%	0.8	23	43.48%	0.5
Underlord	80	13.40%	61.17	81.06	40	45.00%	1.0	40	42.50%	0.8
Snapfire	120	20.10%	60.37	95.10	84	36.90%	2.0	36	55.56%	0.7
Pudge	48	8.04%	59.37	67.58	30	50.00%	0.7	18	38.89%	0.4
Bounty Hunter	55	9.21%	58.65	69.35	20	45.00%	0.5	35	48.57%	0.7
Visage	56	9.38%	56.66	73.09	24	54.17%	0.6	32	31.25%	0.6
Gyrocopter	53	8.88%	55.83	74.71	33	39.39%	0.8	20	60.00%	0.4
Venomancer	43	7.20%	53.71	68.14	23	52.17%	0.6	20	30.00%	0.4
Warlock	32	5.36%	53.65	59.12	22	45.45%	0.5	10	60.00%	0.2
Mars	97	16.25%	52.86	95.87	49	36.73%	1.2	48	39.58%	1.0
Zeus	56	9.38%	51.35	79.33	26	42.31%	0.6	30	40.00%	0.6
Phantom Assassin	38	6.37%	51.30	69.77	30	43.33%	0.7	8	50.00%	0.2
Lich	49	8.21%	48.68	80.41	33	39.39%	0.8	16	43.75%	0.3
Juggernaut	33	5.53%	47.77	63.05	16	43.75%	0.4	17	47.06%	0.3
Lion	22	3.69%	47.63	51.16	17	52.94%	0.4	5	20.00%	0.1
Razor	38	6.37%	47.09	70.77	21	42.86%	0.5	17	41.18%	0.3
Axe	36	6.03%	46.94	68.80	20	35.00%	0.5	16	62.50%	0.3
Sand King	18	3.02%	46.81	36.91	8	50.00%	0.2	10	60.00%	0.2
Enigma	57	9.55%	46.38	84.89	24	37.50%	0.6	33	39.39%	0.7
Phantom Lancer	42	7.04%	44.36	74.33	15	26.67%	0.4	27	55.56%	0.5
Outworld Destroyer	39	6.53%	43.86	72.42	15	40.00%	0.4	24	41.67%	0.5
Tinker	25	4.19%	43.01	51.47	7	42.86%	0.2	18	50.00%	0.4
Dragon Knight	44	7.37%	42.27	84.54	32	34.38%	0.8	12	50.00%	0.2
Nyx Assassin	23	3.85%	42.22	54.04	12	50.00%	0.3	11	36.36%	0.2
Elder Titan	21	3.52%	40.37	58.33	18	44.44%	0.4	3	33.33%	0.1
Bane	10	1.68%	39.89	20.26	5	60.00%	0.1	5	60.00%	0.1
Jakiro	26	4.36%	36.72	71.17	21	38.10%	0.5	5	40.00%	0.1
Omniknight	12	2.01%	33.24	38.58	9	55.56%	0.2	3	0.00%	0.1
Slardar	9	1.51%	30.25	23.23	4	50.00%	0.1	5	60.00%	0.1
Ogre Magi	17	2.85%	28.51	59.74	12	41.67%	0.3	5	20.00%	0.1
Shadow Shaman	1	0.17%	15.80	0.00	1	100.00%	0.0	0	0.00%	0.0
Meepo	4	0.67%	13.52	13.48	2	50.00%	0.0	2	50.00%	0.0
Winter Wyvern	5	0.84%	0.00	62.70	3	0.00%	0.1	2	0.00%	0.0
Arc Warden	2	0.34%	0.00	32.32	2	0.00%	0.0	0	0.00%	0.0