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): 7 - Median hero bans (mb): 9 - Matches: 85

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

Balance rank	Winrate	Pickrate	Contest Rate
65.5	82.3	47.1	52.1

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Clockwerk	19	22.35%	100.00	24.32	12	83.33%	1.7	7	71.43%	0.8
Shadow Demon	31	36.47%	99.10	36.04	19	73.68%	2.7	12	66.67%	1.3
Mars	81	95.29%	98.20	81.08	43	62.79%	6.1	38	47.37%	4.2
Abaddon	27	31.76%	97.30	34.23	12	83.33%	1.7	15	53.33%	1.7
Ember Spirit	27	31.76%	96.40	36.94	9	77.78%	1.3	18	61.11%	2.0
Weaver	73	85.88%	95.50	87.39	22	59.09%	3.1	51	49.02%	5.7
Windranger	5	5.88%	94.59	9.01	4	100.00%	0.6	1	100.00%	0.1
Night Stalker	10	11.76%	93.69	9.91	3	66.67%	0.4	7	100.00%	0.8
Monkey King	57	67.06%	92.79	82.88	20	60.00%	2.9	37	45.95%	4.1
Luna	43	50.59%	91.89	67.57	13	53.85%	1.9	30	56.67%	3.3
Beastmaster	40	47.06%	90.99	65.77	10	40.00%	1.4	30	66.67%	3.3
Treant Protector	33	38.82%	90.09	56.76	17	52.94%	2.4	16	68.75%	1.8
Tidehunter	45	52.94%	89.19	74.77	20	55.00%	2.9	25	52.00%	2.8
Magnus	27	31.76%	88.29	48.65	9	55.56%	1.3	18	66.67%	2.0
Invoker	55	64.71%	87.39	85.59	16	43.75%	2.3	39	56.41%	4.3
Bane	34	40.00%	86.49	63.06	25	56.00%	3.6	9	55.56%	1.0
Bloodseeker	28	32.94%	85.59	53.15	12	66.67%	1.7	16	43.75%	1.8
Earth Spirit	18	21.18%	84.68	40.54	12	66.67%	1.7	6	50.00%	0.7
Snapfire	54	63.53%	83.78	95.50	40	42.50%	5.7	14	64.29%	1.6
Rubick	23	27.06%	82.88	49.55	10	50.00%	1.4	13	69.23%	1.4
Venomancer	21	24.71%	81.98	45.05	4	100.00%	0.6	17	41.18%	1.9
Lina	19	22.35%	81.08	42.34	4	75.00%	0.6	15	53.33%	1.7
Legion Commander	26	30.59%	80.18	57.66	9	44.44%	1.3	17	64.71%	1.9
Viper	31	36.47%	79.28	63.96	3	100.00%	0.4	28	42.86%	3.1
Queen of Pain	52	61.18%	78.38	94.59	17	41.18%	2.4	35	48.57%	3.9
Sand King	13	15.29%	77.48	31.53	7	57.14%	1.0	6	83.33%	0.7
Phantom Lancer	29	34.12%	76.58	61.26	5	60.00%	0.7	24	50.00%	2.7
Timbersaw	53	62.35%	75.68	96.40	13	53.85%	1.9	40	37.50%	4.4
Terrorblade	36	42.35%	74.77	81.98	16	62.50%	2.3	20	25.00%	2.2
Phantom Assassin	17	20.00%	73.87	45.95	11	54.55%	1.6	6	66.67%	0.7
Broodmother	20	23.53%	72.97	47.75	3	33.33%	0.4	17	64.71%	1.9
Earthshaker	7	8.24%	72.07	14.41	5	80.00%	0.7	2	50.00%	0.2
Wraith King	27	31.76%	71.17	66.67	11	45.45%	1.6	16	56.25%	1.8
Shadow Fiend	3	3.53%	70.27	5.41	3	100.00%	0.4	0	0.00%	0.0
Morphling	30	35.29%	69.37	72.07	9	55.56%	1.3	21	42.86%	2.3
Puck	28	32.94%	68.47	71.17	13	46.15%	1.9	15	53.33%	1.7
Kunkka	56	65.88%	67.57	99.10	21	42.86%	3.0	35	37.14%	3.9
Naga Siren	9	10.59%	66.67	23.42	2	100.00%	0.3	7	57.14%	0.8
Io	31	36.47%	65.77	77.48	14	28.57%	2.0	17	76.47%	1.9
Templar Assassin	40	47.06%	64.86	93.69	22	45.45%	3.1	18	38.89%	2.0
Sven	10	11.76%	63.96	27.93	5	80.00%	0.7	5	40.00%	0.6
Leshrac	30	35.29%	63.06	76.58	8	50.00%	1.1	22	45.45%	2.4
Ursa	23	27.06%	62.16	55.86	4	50.00%	0.6	19	52.63%	2.1
Medusa	31	36.47%	61.26	79.28	12	58.33%	1.7	19	31.58%	2.1
Faceless Void	37	43.53%	60.36	88.29	13	38.46%	1.9	24	50.00%	2.7
Phoenix	13	15.29%	59.46	39.64	6	66.67%	0.9	7	42.86%	0.8
Batrider	35	41.18%	58.56	90.09	7	57.14%	1.0	28	35.71%	3.1
Storm Spirit	25	29.41%	57.66	73.87	10	30.00%	1.4	15	66.67%	1.7
Grimstroke	16	18.82%	56.76	54.95	14	50.00%	2.0	2	50.00%	0.2
Death Prophet	19	22.35%	55.86	62.16	12	50.00%	1.7	7	42.86%	0.8
Razor	29	34.12%	54.95	83.78	8	37.50%	1.1	21	47.62%	2.3
Ogre Magi	30	35.29%	54.05	91.89	24	37.50%	3.4	6	66.67%	0.7
Tiny	9	10.59%	53.15	33.33	8	62.50%	1.1	1	0.00%	0.1
Drow Ranger	15	17.65%	52.25	46.85	4	50.00%	0.6	11	54.55%	1.2
Centaur Warrunner	12	14.12%	51.35	37.84	4	50.00%	0.6	8	62.50%	0.9
Dark Seer	15	17.65%	50.45	50.45	7	42.86%	1.0	8	62.50%	0.9
Doom	16	18.82%	49.55	54.05	7	42.86%	1.0	9	55.56%	1.0
Underlord	4	4.71%	48.65	13.51	4	75.00%	0.6	0	0.00%	0.0
Lifestealer	10	11.76%	47.75	29.73	0	0.00%	0.0	10	60.00%	1.1
Outworld Destroyer	32	37.65%	46.85	97.30	7	14.29%	1.0	25	48.00%	2.8
Mirana	14	16.47%	45.95	51.35	5	60.00%	0.7	9	33.33%	1.0
Spirit Breaker	25	29.41%	45.05	92.79	13	30.77%	1.9	12	50.00%	1.3
Void Spirit	23	27.06%	44.14	90.99	12	41.67%	1.7	11	27.27%	1.2
Disruptor	17	20.00%	43.24	72.97	10	50.00%	1.4	7	14.29%	0.8
Tinker	8	9.41%	42.34	32.43	3	66.67%	0.4	5	40.00%	0.6
Gyrocopter	29	34.12%	41.44	98.20	15	26.67%	2.1	14	42.86%	1.6
Lion	11	12.94%	40.54	58.56	10	40.00%	1.4	1	100.00%	0.1
Nyx Assassin	19	22.35%	39.64	80.18	5	40.00%	0.7	14	35.71%	1.6
Oracle	12	14.12%	38.74	52.25	4	50.00%	0.6	8	37.50%	0.9
Silencer	19	22.35%	37.84	84.68	6	33.33%	0.9	13	38.46%	1.4
Tusk	15	17.65%	36.94	75.68	9	33.33%	1.3	6	50.00%	0.7
Chaos Knight	9	10.59%	36.04	44.14	2	100.00%	0.3	7	14.29%	0.8
Hoodwink	11	12.94%	35.14	70.27	9	33.33%	1.3	2	50.00%	0.2
Pangolier	16	18.82%	34.23	89.19	7	14.29%	1.0	9	55.56%	1.0
Dawnbreaker	2	2.35%	33.33	8.11	0	0.00%	0.0	2	100.00%	0.2
Alchemist	4	4.71%	32.43	18.92	1	0.00%	0.1	3	100.00%	0.3
Chen	1	1.18%	31.53	3.60	1	100.00%	0.1	0	0.00%	0.0
Dark Willow	9	10.59%	30.63	64.86	6	33.33%	0.9	3	33.33%	0.3
Jakiro	6	7.06%	29.73	43.24	4	25.00%	0.6	2	100.00%	0.2
Lich	2	2.35%	28.83	22.52	2	50.00%	0.3	0	0.00%	0.0
Witch Doctor	2	2.35%	28.83	22.52	2	50.00%	0.3	0	0.00%	0.0
Slardar	2	2.35%	28.83	22.52	2	50.00%	0.3	0	0.00%	0.0
Axe	2	2.35%	28.83	22.52	2	50.00%	0.3	0	0.00%	0.0
Brewmaster	16	18.82%	25.23	100.00	7	0.00%	1.0	9	44.44%	1.0
Undying	4	4.71%	24.32	28.83	1	0.00%	0.1	3	66.67%	0.3
Warlock	1	1.18%	23.42	4.50	0	0.00%	0.0	1	100.00%	0.1
Enigma	1	1.18%	23.42	7.21	0	0.00%	0.0	1	100.00%	0.1
Riki	1	1.18%	23.42	2.70	0	0.00%	0.0	1	100.00%	0.1
Lone Druid	1	1.18%	23.42	2.70	0	0.00%	0.0	1	100.00%	0.1
Visage	1	1.18%	23.42	7.21	0	0.00%	0.0	1	100.00%	0.1
Bristleback	1	1.18%	23.42	2.70	0	0.00%	0.0	1	100.00%	0.1
Elder Titan	8	9.41%	18.02	69.37	4	25.00%	0.6	4	25.00%	0.4
Skywrath Mage	9	10.59%	17.12	78.38	4	25.00%	0.6	5	20.00%	0.6
Troll Warlord	10	11.76%	16.22	86.49	4	0.00%	0.6	6	50.00%	0.7
Dragon Knight	4	4.71%	15.32	35.14	2	50.00%	0.3	2	0.00%	0.2
Juggernaut	6	7.06%	14.41	59.46	3	33.33%	0.4	3	0.00%	0.3
Pudge	2	2.35%	13.51	12.61	0	0.00%	0.0	2	50.00%	0.2
Nature's Prophet	2	2.35%	13.51	12.61	0	0.00%	0.0	2	50.00%	0.2
Techies	2	2.35%	13.51	12.61	0	0.00%	0.0	2	50.00%	0.2
Lycan	3	3.53%	10.81	41.44	2	0.00%	0.3	1	100.00%	0.1
Anti-Mage	5	5.88%	9.91	60.36	2	0.00%	0.3	3	33.33%	0.3
Ancient Apparition	5	5.88%	9.01	68.47	3	0.00%	0.4	2	50.00%	0.2
Winter Wyvern	2	2.35%	8.11	38.74	1	0.00%	0.1	1	0.00%	0.1
Keeper of the Light	1	1.18%	7.21	18.02	0	0.00%	0.0	1	0.00%	0.1
Arc Warden	2	2.35%	6.31	30.63	0	0.00%	0.0	2	0.00%	0.2
Dazzle	1	1.18%	5.41	18.02	0	0.00%	0.0	1	0.00%	0.1
Necrophos	1	1.18%	4.50	27.03	1	0.00%	0.1	0	0.00%	0.0
Shadow Shaman	1	1.18%	4.50	27.03	1	0.00%	0.1	0	0.00%	0.0
Sniper	1	1.18%	2.70	18.02	0	0.00%	0.0	1	0.00%	0.1
Zeus	1	1.18%	2.70	18.02	0	0.00%	0.0	1	0.00%	0.1
Slark	1	1.18%	0.90	27.03	1	0.00%	0.1	0	0.00%	0.0