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): 11 - Matches: 133

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

Balance rank	Winrate	Pickrate	Contest Rate
66.0	88.2	43.0	45.5

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Spirit Breaker	77	57.89%	100.00	62.86	25	64.00%	2.8	52	55.77%	4.7
Troll Warlord	30	22.56%	99.05	21.90	10	90.00%	1.1	20	55.00%	1.8
Kunkka	51	38.35%	98.10	40.95	21	61.90%	2.3	30	66.67%	2.7
Wraith King	60	45.11%	97.14	51.43	32	62.50%	3.6	28	57.14%	2.5
Storm Spirit	56	42.11%	96.19	46.67	20	60.00%	2.2	36	63.89%	3.3
Razor	99	74.44%	95.24	80.00	33	51.52%	3.7	66	57.58%	6.0
Templar Assassin	99	74.44%	94.29	82.86	27	59.26%	3.0	72	50.00%	6.5
Io	94	70.68%	93.33	80.95	26	61.54%	2.9	68	48.53%	6.2
Faceless Void	35	26.32%	92.38	32.38	6	33.33%	0.7	29	79.31%	2.6
Pangolier	65	48.87%	91.43	69.52	31	58.06%	3.4	34	52.94%	3.1
Abaddon	15	11.28%	90.48	15.24	10	80.00%	1.1	5	60.00%	0.5
Lycan	44	33.08%	89.52	48.57	12	58.33%	1.3	32	59.38%	2.9
Tidehunter	63	47.37%	88.57	71.43	36	52.78%	4.0	27	55.56%	2.5
Lina	81	60.90%	87.62	85.71	27	59.26%	3.0	54	42.59%	4.9
Mars	106	79.70%	86.67	95.24	48	43.75%	5.3	58	53.45%	5.3
Terrorblade	51	38.35%	85.71	63.81	16	43.75%	1.8	35	65.71%	3.2
Bane	86	64.66%	84.76	92.38	61	49.18%	6.8	25	48.00%	2.3
Weaver	105	78.95%	83.81	96.19	38	42.11%	4.2	67	52.24%	6.1
Rubick	34	25.56%	82.86	41.90	18	66.67%	2.0	16	43.75%	1.5
Queen of Pain	111	83.46%	81.90	98.10	43	44.19%	4.8	68	48.53%	6.2
Morphling	85	63.91%	80.95	91.43	29	55.17%	3.2	56	42.86%	5.1
Ember Spirit	63	47.37%	80.00	76.19	26	46.15%	2.9	37	59.46%	3.4
Bloodseeker	44	33.08%	79.05	56.19	14	57.14%	1.6	30	53.33%	2.7
Batrider	46	34.59%	78.10	58.10	9	55.56%	1.0	37	54.05%	3.4
Grimstroke	62	46.62%	77.14	83.81	40	47.50%	4.4	22	54.55%	2.0
Monkey King	103	77.44%	76.19	100.00	27	37.04%	3.0	76	48.68%	6.9
Medusa	58	43.61%	75.24	77.14	16	43.75%	1.8	42	54.76%	3.8
Disruptor	38	28.57%	74.29	60.95	29	55.17%	3.2	9	44.44%	0.8
Shadow Demon	19	14.29%	73.33	23.81	7	57.14%	0.8	12	75.00%	1.1
Hoodwink	16	12.03%	72.38	22.86	13	69.23%	1.4	3	33.33%	0.3
Nyx Assassin	43	32.33%	71.43	66.67	16	56.25%	1.8	27	48.15%	2.5
Death Prophet	92	69.17%	70.48	99.05	47	38.30%	5.2	45	53.33%	4.1
Beastmaster	41	30.83%	69.52	59.05	8	75.00%	0.9	33	42.42%	3.0
Outworld Destroyer	88	66.17%	68.57	97.14	14	50.00%	1.6	74	41.89%	6.7
Void Spirit	44	33.08%	67.62	70.48	22	45.45%	2.4	22	59.09%	2.0
Snapfire	48	36.09%	66.67	78.10	39	43.59%	4.3	9	88.89%	0.8
Juggernaut	17	12.78%	65.71	24.76	8	62.50%	0.9	9	66.67%	0.8
Doom	30	22.56%	64.76	49.52	14	57.14%	1.6	16	50.00%	1.5
Shadow Shaman	6	4.51%	63.81	8.57	6	83.33%	0.7	0	0.00%	0.0
Puck	59	44.36%	62.86	86.67	12	41.67%	1.3	47	48.94%	4.3
Viper	31	23.31%	61.90	53.33	8	37.50%	0.9	23	60.87%	2.1
Tusk	31	23.31%	60.95	68.57	24	45.83%	2.7	7	71.43%	0.6
Night Stalker	54	40.60%	60.00	90.48	14	42.86%	1.6	40	45.00%	3.6
Ursa	28	21.05%	59.05	60.00	11	54.55%	1.2	17	41.18%	1.5
Broodmother	40	30.08%	58.10	81.90	10	70.00%	1.1	30	26.67%	2.7
Invoker	25	18.80%	57.14	54.29	10	40.00%	1.1	15	60.00%	1.4
Phantom Lancer	14	10.53%	56.19	25.71	3	66.67%	0.3	11	54.55%	1.0
Drow Ranger	41	30.83%	55.24	88.57	10	30.00%	1.1	31	48.39%	2.8
Dark Seer	21	15.79%	54.29	44.76	7	57.14%	0.8	14	42.86%	1.3
Tinker	9	6.77%	53.33	20.00	5	80.00%	0.6	4	25.00%	0.4
Ogre Magi	39	29.32%	52.38	93.33	36	36.11%	4.0	3	66.67%	0.3
Phantom Assassin	22	16.54%	51.43	61.90	11	45.45%	1.2	11	45.45%	1.0
Clockwerk	11	8.27%	50.48	29.52	9	55.56%	1.0	2	50.00%	0.2
Earthshaker	13	9.77%	49.52	36.19	8	62.50%	0.9	5	20.00%	0.5
Lifestealer	36	27.07%	48.57	89.52	8	37.50%	0.9	28	39.29%	2.5
Mirana	18	13.53%	47.62	55.24	13	46.15%	1.4	5	40.00%	0.5
Legion Commander	23	17.29%	46.67	67.62	7	42.86%	0.8	16	43.75%	1.5
Oracle	4	3.01%	45.71	7.62	2	100.00%	0.2	2	50.00%	0.2
Luna	30	22.56%	44.76	87.62	12	41.67%	1.3	18	33.33%	1.6
Undying	15	11.28%	43.81	47.62	11	45.45%	1.2	4	50.00%	0.4
Tiny	6	4.51%	42.86	12.38	3	66.67%	0.3	3	66.67%	0.3
Ancient Apparition	15	11.28%	41.90	40.00	4	50.00%	0.4	11	45.45%	1.0
Leshrac	16	12.03%	40.95	52.38	9	55.56%	1.0	7	14.29%	0.6
Anti-Mage	21	15.79%	40.00	64.76	3	33.33%	0.3	18	44.44%	1.6
Lion	23	17.29%	39.05	84.76	18	38.89%	2.0	5	20.00%	0.5
Dark Willow	18	13.53%	38.10	74.29	14	42.86%	1.6	4	0.00%	0.4
Windranger	17	12.78%	37.14	73.33	15	40.00%	1.7	2	0.00%	0.2
Brewmaster	8	6.02%	36.19	20.95	3	66.67%	0.3	5	40.00%	0.5
Naga Siren	16	12.03%	35.24	42.86	0	0.00%	0.0	16	43.75%	1.5
Enchantress	11	8.27%	34.29	39.05	7	57.14%	0.8	4	0.00%	0.4
Phoenix	10	7.52%	33.33	34.29	5	40.00%	0.6	5	60.00%	0.5
Pugna	2	1.50%	32.38	0.95	1	100.00%	0.1	1	100.00%	0.1
Silencer	11	8.27%	31.43	50.48	9	44.44%	1.0	2	0.00%	0.2
Sand King	5	3.76%	30.48	18.10	4	50.00%	0.4	1	100.00%	0.1
Treant Protector	10	7.52%	29.52	45.71	8	37.50%	0.9	2	50.00%	0.2
Riki	5	3.76%	28.57	14.29	2	50.00%	0.2	3	66.67%	0.3
Shadow Fiend	12	9.02%	27.62	65.71	8	37.50%	0.9	4	25.00%	0.4
Bristleback	7	5.26%	26.67	28.57	4	50.00%	0.4	3	33.33%	0.3
Magnus	4	3.01%	25.71	13.33	3	66.67%	0.3	1	0.00%	0.1
Timbersaw	14	10.53%	24.76	79.05	7	28.57%	0.8	7	28.57%	0.6
Clinkz	1	0.75%	23.81	5.71	1	100.00%	0.1	0	0.00%	0.0
Witch Doctor	1	0.75%	23.81	5.71	1	100.00%	0.1	0	0.00%	0.0
Lich	1	0.75%	23.81	5.71	1	100.00%	0.1	0	0.00%	0.0
Centaur Warrunner	1	0.75%	23.81	5.71	1	100.00%	0.1	0	0.00%	0.0
Sniper	1	0.75%	23.81	5.71	1	100.00%	0.1	0	0.00%	0.0
Gyrocopter	6	4.51%	19.05	30.48	4	50.00%	0.4	2	0.00%	0.2
Sven	4	3.01%	18.10	16.19	2	50.00%	0.2	2	50.00%	0.2
Dawnbreaker	10	7.52%	17.14	72.38	6	33.33%	0.7	4	0.00%	0.4
Visage	6	4.51%	16.19	35.24	3	33.33%	0.3	3	33.33%	0.3
Dragon Knight	6	4.51%	15.24	38.10	4	25.00%	0.4	2	50.00%	0.2
Venomancer	2	1.50%	14.29	11.43	2	50.00%	0.2	0	0.00%	0.0
Skywrath Mage	1	0.75%	13.33	6.67	0	0.00%	0.0	1	100.00%	0.1
Earth Spirit	3	2.26%	12.38	19.05	2	50.00%	0.2	1	0.00%	0.1
Slardar	7	5.26%	11.43	37.14	0	0.00%	0.0	7	28.57%	0.6
Jakiro	4	3.01%	10.48	31.43	3	33.33%	0.3	1	0.00%	0.1
Winter Wyvern	5	3.76%	9.52	43.81	4	25.00%	0.4	1	0.00%	0.1
Spectre	7	5.26%	8.57	57.14	3	0.00%	0.3	4	50.00%	0.4
Slark	11	8.27%	7.62	94.29	1	0.00%	0.1	10	10.00%	0.9
Chaos Knight	6	4.51%	6.67	75.24	4	0.00%	0.4	2	50.00%	0.2
Enigma	2	1.50%	5.71	27.62	1	0.00%	0.1	1	0.00%	0.1
Axe	2	1.50%	5.71	27.62	1	0.00%	0.1	1	0.00%	0.1
Elder Titan	2	1.50%	3.81	33.33	2	0.00%	0.2	0	0.00%	0.0
Underlord	1	0.75%	2.86	17.14	1	0.00%	0.1	0	0.00%	0.0
Necrophos	1	0.75%	1.90	9.52	0	0.00%	0.0	1	0.00%	0.1
Nature's Prophet	1	0.75%	1.90	11.43	0	0.00%	0.0	1	0.00%	0.1