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): 9 - Median hero bans (mb): 13 - Matches: 153

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

Balance rank	Winrate	Pickrate	Contest Rate
58.9	74.3	43.0	44.6

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Weaver	140	91.50%	100.00	83.49	58	58.62%	6.4	82	51.22%	6.3
Outworld Destroyer	87	56.86%	99.08	67.89	32	65.63%	3.6	55	50.91%	4.2
Io	149	97.39%	98.17	95.41	36	61.11%	4.0	113	45.13%	8.7
Phantom Assassin	72	47.06%	97.25	63.30	19	57.89%	2.1	53	60.38%	4.1
Monkey King	106	69.28%	96.33	76.15	33	51.52%	3.7	73	56.16%	5.6
Beastmaster	126	82.35%	95.41	89.91	32	56.25%	3.6	94	48.94%	7.2
Bane	123	80.39%	94.50	91.74	84	53.57%	9.3	39	41.03%	3.0
Mars	113	73.86%	93.58	88.07	35	65.71%	3.9	78	39.74%	6.0
Kunkka	123	80.39%	92.66	93.58	54	50.00%	6.0	69	49.28%	5.3
Invoker	88	57.52%	91.74	73.39	24	58.33%	2.7	64	50.00%	4.9
Puck	104	67.97%	90.83	86.24	36	52.78%	4.0	68	50.00%	5.2
Razor	94	61.44%	89.91	84.40	36	44.44%	4.0	58	58.62%	4.5
Death Prophet	33	21.57%	88.99	44.04	18	66.67%	2.0	15	53.33%	1.2
Queen of Pain	115	75.16%	88.07	96.33	69	43.48%	7.7	46	60.87%	3.5
Clinkz	10	6.54%	87.16	3.67	4	100.00%	0.4	6	66.67%	0.5
Timbersaw	47	30.72%	86.24	55.96	14	50.00%	1.6	33	63.64%	2.5
Axe	23	15.03%	85.32	27.52	10	70.00%	1.1	13	61.54%	1.0
Terrorblade	82	53.59%	84.40	81.65	21	52.38%	2.3	61	49.18%	4.7
Ember Spirit	46	30.07%	83.49	59.63	25	60.00%	2.8	21	47.62%	1.6
Luna	88	57.52%	82.57	87.16	27	55.56%	3.0	61	44.26%	4.7
Mirana	21	13.73%	81.65	34.86	16	75.00%	1.8	5	0.00%	0.4
Lina	82	53.59%	80.73	85.32	24	45.83%	2.7	58	51.72%	4.5
Disruptor	68	44.44%	79.82	77.06	39	43.59%	4.3	29	65.52%	2.2
Lycan	21	13.73%	78.90	26.61	8	50.00%	0.9	13	84.62%	1.0
Treant Protector	39	25.49%	77.98	58.72	25	48.00%	2.8	14	78.57%	1.1
Spirit Breaker	113	73.86%	77.06	98.17	51	43.14%	5.7	62	45.16%	4.8
Medusa	80	52.29%	76.15	88.99	16	68.75%	1.8	64	37.50%	4.9
Snapfire	52	33.99%	75.23	70.64	38	50.00%	4.2	14	57.14%	1.1
Viper	19	12.42%	74.31	19.27	3	33.33%	0.3	16	81.25%	1.2
Sand King	43	28.10%	73.39	66.97	19	47.37%	2.1	24	58.33%	1.8
Silencer	26	16.99%	72.48	45.87	10	50.00%	1.1	16	68.75%	1.2
Visage	14	9.15%	71.56	16.51	5	80.00%	0.6	9	55.56%	0.7
Abaddon	20	13.07%	70.64	40.37	12	58.33%	1.3	8	62.50%	0.6
Enchantress	19	12.42%	69.72	33.94	7	57.14%	0.8	12	66.67%	0.9
Faceless Void	49	32.03%	68.81	71.56	9	44.44%	1.0	40	50.00%	3.1
Lion	45	29.41%	67.89	72.48	35	48.57%	3.9	10	40.00%	0.8
Night Stalker	52	33.99%	66.97	75.23	17	41.18%	1.9	35	51.43%	2.7
Legion Commander	41	26.80%	66.06	68.81	12	41.67%	1.3	29	55.17%	2.2
Shadow Demon	20	13.07%	65.14	39.45	9	55.56%	1.0	11	63.64%	0.8
Drow Ranger	25	16.34%	64.22	47.71	5	80.00%	0.6	20	45.00%	1.5
Rubick	31	20.26%	63.30	62.39	18	44.44%	2.0	13	69.23%	1.0
Chen	27	17.65%	62.39	51.38	4	50.00%	0.4	23	56.52%	1.8
Pangolier	17	11.11%	61.47	35.78	8	62.50%	0.9	9	55.56%	0.7
Void Spirit	28	18.30%	60.55	56.88	15	60.00%	1.7	13	30.77%	1.0
Wraith King	56	36.60%	59.63	90.83	35	42.86%	3.9	21	42.86%	1.6
Magnus	18	11.76%	58.72	41.28	12	58.33%	1.3	6	50.00%	0.5
Jakiro	22	14.38%	57.80	55.05	18	55.56%	2.0	4	25.00%	0.3
Batrider	32	20.92%	56.88	60.55	6	50.00%	0.7	26	50.00%	2.0
Ogre Magi	13	8.50%	55.96	25.69	10	60.00%	1.1	3	66.67%	0.2
Broodmother	30	19.61%	55.05	57.80	6	16.67%	0.7	24	66.67%	1.8
Hoodwink	10	6.54%	54.13	20.18	9	66.67%	1.0	1	0.00%	0.1
Leshrac	19	12.42%	53.21	48.62	9	44.44%	1.0	10	70.00%	0.8
Grimstroke	49	32.03%	52.29	92.66	33	36.36%	3.7	16	56.25%	1.2
Ursa	67	43.79%	51.38	97.25	14	42.86%	1.6	53	35.85%	4.1
Templar Assassin	39	25.49%	50.46	77.98	17	35.29%	1.9	22	54.55%	1.7
Doom	32	20.92%	49.54	69.72	13	38.46%	1.4	19	52.63%	1.5
Centaur Warrunner	12	7.84%	48.62	28.44	7	57.14%	0.8	5	60.00%	0.4
Troll Warlord	16	10.46%	47.71	46.79	9	55.56%	1.0	7	42.86%	0.5
Storm Spirit	44	28.76%	46.79	94.50	22	40.91%	2.4	22	31.82%	1.7
Slardar	37	24.18%	45.87	82.57	10	50.00%	1.1	27	33.33%	2.1
Nyx Assassin	23	15.03%	44.95	66.06	15	46.67%	1.7	8	37.50%	0.6
Shadow Fiend	10	6.54%	44.04	23.85	7	57.14%	0.8	3	66.67%	0.2
Phoenix	9	5.88%	43.12	18.35	6	66.67%	0.7	3	33.33%	0.2
Phantom Lancer	32	20.92%	42.20	80.73	13	46.15%	1.4	19	31.58%	1.5
Clockwerk	15	9.80%	41.28	53.21	12	50.00%	1.3	3	33.33%	0.2
Shadow Shaman	10	6.54%	40.37	30.28	8	50.00%	0.9	2	100.00%	0.2
Skywrath Mage	10	6.54%	39.45	31.19	8	62.50%	0.9	2	0.00%	0.2
Lifestealer	14	9.15%	38.53	37.61	3	66.67%	0.3	11	45.45%	0.8
Underlord	25	16.34%	37.61	74.31	18	33.33%	2.0	7	71.43%	0.5
Techies	7	4.58%	36.70	6.42	2	100.00%	0.2	5	40.00%	0.4
Tidehunter	29	18.95%	35.78	78.90	8	12.50%	0.9	21	57.14%	1.6
Bloodseeker	10	6.54%	34.86	29.36	5	40.00%	0.6	5	80.00%	0.4
Dark Willow	37	24.18%	33.94	99.08	19	31.58%	2.1	18	27.78%	1.4
Nature's Prophet	8	5.23%	33.03	33.03	6	50.00%	0.7	2	50.00%	0.2
Dark Seer	14	9.15%	32.11	61.47	9	33.33%	1.0	5	60.00%	0.4
Morphling	37	24.18%	31.19	100.00	10	20.00%	1.1	27	33.33%	2.1
Chaos Knight	11	7.19%	30.28	52.29	6	33.33%	0.7	5	60.00%	0.4
Venomancer	12	7.84%	29.36	44.95	2	0.00%	0.2	10	60.00%	0.8
Windranger	5	3.27%	28.44	7.34	4	50.00%	0.4	1	100.00%	0.1
Undying	10	6.54%	27.52	50.46	7	28.57%	0.8	3	100.00%	0.2
Sniper	8	5.23%	26.61	22.94	2	50.00%	0.2	6	50.00%	0.5
Dragon Knight	13	8.50%	25.69	65.14	9	33.33%	1.0	4	50.00%	0.3
Oracle	7	4.58%	24.77	22.02	3	66.67%	0.3	4	25.00%	0.3
Enigma	6	3.92%	23.85	17.43	2	100.00%	0.2	4	0.00%	0.3
Huskar	5	3.27%	22.94	5.50	0	0.00%	0.0	5	60.00%	0.4
Pudge	4	2.61%	22.02	13.76	4	50.00%	0.4	0	0.00%	0.0
Keeper of the Light	1	0.65%	21.10	2.75	1	100.00%	0.1	0	0.00%	0.0
Earthshaker	1	0.65%	21.10	2.75	1	100.00%	0.1	0	0.00%	0.0
Lich	1	0.65%	21.10	2.75	1	100.00%	0.1	0	0.00%	0.0
Anti-Mage	10	6.54%	18.35	49.54	1	0.00%	0.1	9	44.44%	0.7
Naga Siren	14	9.15%	17.43	79.82	3	0.00%	0.3	11	36.36%	0.8
Pugna	2	1.31%	16.51	4.59	2	50.00%	0.2	0	0.00%	0.0
Slark	9	5.88%	15.60	64.22	3	0.00%	0.3	6	50.00%	0.5
Brewmaster	4	2.61%	14.68	14.68	1	0.00%	0.1	3	66.67%	0.2
Necrophos	4	2.61%	13.76	15.60	1	100.00%	0.1	3	0.00%	0.2
Sven	4	2.61%	12.84	24.77	2	50.00%	0.2	2	0.00%	0.2
Gyrocopter	3	1.96%	11.93	21.10	3	33.33%	0.3	0	0.00%	0.0
Tinker	5	3.27%	11.01	38.53	2	50.00%	0.2	3	0.00%	0.2
Ancient Apparition	4	2.61%	10.09	36.70	3	33.33%	0.3	1	0.00%	0.1
Vengeful Spirit	4	2.61%	9.17	42.20	4	25.00%	0.4	0	0.00%	0.0
Crystal Maiden	3	1.96%	8.26	32.11	2	0.00%	0.2	1	100.00%	0.1
Earth Spirit	4	2.61%	7.34	43.12	2	0.00%	0.2	2	50.00%	0.2
Elder Titan	5	3.27%	6.42	54.13	2	0.00%	0.2	3	33.33%	0.2
Juggernaut	1	0.65%	5.50	12.84	1	0.00%	0.1	0	0.00%	0.0
Winter Wyvern	1	0.65%	5.50	12.84	1	0.00%	0.1	0	0.00%	0.0
Bounty Hunter	1	0.65%	5.50	12.84	1	0.00%	0.1	0	0.00%	0.0
Dazzle	1	0.65%	5.50	12.84	1	0.00%	0.1	0	0.00%	0.0
Witch Doctor	1	0.65%	5.50	12.84	1	0.00%	0.1	0	0.00%	0.0
Warlock	1	0.65%	5.50	12.84	1	0.00%	0.1	0	0.00%	0.0