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): 5 - Median hero bans (mb): 8 - Matches: 86

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

Balance rank	Winrate	Pickrate	Contest Rate
64.4	80.2	52.1	41.3

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Queen of Pain	72	83.72%	100.00	69.72	35	57.14%	7.0	37	67.57%	4.6
Dark Seer	21	24.42%	99.08	25.69	8	87.50%	1.6	13	69.23%	1.6
Outworld Destroyer	35	40.70%	98.17	45.87	10	90.00%	2.0	25	52.00%	3.1
Bane	65	75.58%	97.25	71.56	43	65.12%	8.6	22	36.36%	2.8
Templar Assassin	46	53.49%	96.33	60.55	15	80.00%	3.0	31	45.16%	3.9
Mirana	9	10.47%	95.41	10.09	6	100.00%	1.2	3	33.33%	0.4
Lycan	13	15.12%	94.50	14.68	3	100.00%	0.6	10	70.00%	1.3
Kunkka	53	61.63%	93.58	73.39	22	54.55%	4.4	31	58.06%	3.9
Beastmaster	69	80.23%	92.66	88.07	16	43.75%	3.2	53	56.60%	6.6
Tidehunter	42	48.84%	91.74	66.06	16	68.75%	3.2	26	42.31%	3.3
Razor	63	73.26%	90.83	89.91	26	57.69%	5.2	37	40.54%	4.6
Vengeful Spirit	4	4.65%	89.91	8.26	4	100.00%	0.8	0	0.00%	0.0
Lina	44	51.16%	88.99	76.15	11	36.36%	2.2	33	63.64%	4.1
Invoker	62	72.09%	88.07	92.66	21	47.62%	4.2	41	48.78%	5.1
Timbersaw	47	54.65%	87.16	81.65	13	46.15%	2.6	34	55.88%	4.3
Spirit Breaker	62	72.09%	86.24	93.58	28	42.86%	5.6	34	55.88%	4.3
Storm Spirit	29	33.72%	85.32	58.72	16	68.75%	3.2	13	30.77%	1.6
Io	82	95.35%	84.40	98.17	24	45.83%	4.8	58	43.10%	7.3
Treant Protector	27	31.40%	83.49	59.63	17	58.82%	3.4	10	50.00%	1.3
Ember Spirit	36	41.86%	82.57	68.81	15	46.67%	3.0	21	61.90%	2.6
Phantom Assassin	47	54.65%	81.65	85.32	15	60.00%	3.0	32	40.63%	4.0
Night Stalker	36	41.86%	80.73	67.89	9	55.56%	1.8	27	51.85%	3.4
Wraith King	49	56.98%	79.82	87.16	25	48.00%	5.0	24	50.00%	3.0
Puck	54	62.79%	78.90	90.83	22	40.91%	4.4	32	56.25%	4.0
Ursa	20	23.26%	77.98	46.79	6	66.67%	1.2	14	57.14%	1.8
Weaver	72	83.72%	77.06	97.25	33	33.33%	6.6	39	58.97%	4.9
Snapfire	40	46.51%	76.15	84.40	29	51.72%	5.8	11	36.36%	1.4
Morphling	29	33.72%	75.23	63.30	3	0.00%	0.6	26	65.38%	3.3
Legion Commander	21	24.42%	74.31	49.54	3	66.67%	0.6	18	55.56%	2.3
Grimstroke	24	27.91%	73.39	64.22	16	56.25%	3.2	8	37.50%	1.0
Nyx Assassin	32	37.21%	72.48	78.90	17	52.94%	3.4	15	40.00%	1.9
Void Spirit	14	16.28%	71.56	43.12	7	57.14%	1.4	7	71.43%	0.9
Mars	63	73.26%	70.64	99.08	25	36.00%	5.0	38	44.74%	4.8
Earth Spirit	3	3.49%	69.72	0.92	3	100.00%	0.6	0	0.00%	0.0
Luna	45	52.33%	68.81	94.50	18	27.78%	3.6	27	62.96%	3.4
Troll Warlord	21	24.42%	67.89	55.96	4	50.00%	0.8	17	52.94%	2.1
Disruptor	25	29.07%	66.97	77.06	20	45.00%	4.0	5	60.00%	0.6
Sand King	10	11.63%	66.06	33.03	4	50.00%	0.8	6	83.33%	0.8
Leshrac	10	11.63%	65.14	33.94	4	75.00%	0.8	6	50.00%	0.8
Rubick	18	20.93%	64.22	61.47	12	50.00%	2.4	6	50.00%	0.8
Gyrocopter	14	16.28%	63.30	52.29	11	54.55%	2.2	3	33.33%	0.4
Viper	10	11.63%	62.39	35.78	3	66.67%	0.6	7	57.14%	0.9
Faceless Void	27	31.40%	61.47	80.73	5	60.00%	1.0	22	36.36%	2.8
Broodmother	29	33.72%	60.55	82.57	1	100.00%	0.2	28	39.29%	3.5
Shadow Fiend	15	17.44%	59.63	55.05	11	54.55%	2.2	4	25.00%	0.5
Doom	31	36.05%	58.72	88.99	11	27.27%	2.2	20	55.00%	2.5
Terrorblade	22	25.58%	57.80	70.64	5	40.00%	1.0	17	47.06%	2.1
Jakiro	9	10.47%	56.88	44.95	9	55.56%	1.8	0	0.00%	0.0
Shadow Demon	20	23.26%	55.96	72.48	10	40.00%	2.0	10	50.00%	1.3
Dazzle	7	8.14%	55.05	26.61	4	75.00%	0.8	3	33.33%	0.4
Monkey King	33	38.37%	54.13	96.33	11	27.27%	2.2	22	45.45%	2.8
Clockwerk	12	13.95%	53.21	57.80	10	50.00%	2.0	2	0.00%	0.3
Bloodseeker	16	18.60%	52.29	65.14	5	60.00%	1.0	11	27.27%	1.4
Slardar	22	25.58%	51.38	86.24	5	40.00%	1.0	17	35.29%	2.1
Batrider	19	22.09%	50.46	77.98	4	25.00%	0.8	15	46.67%	1.9
Lifestealer	6	6.98%	49.54	22.02	2	50.00%	0.4	4	75.00%	0.5
Medusa	17	19.77%	48.62	74.31	6	16.67%	1.2	11	63.64%	1.4
Phantom Lancer	9	10.47%	47.71	37.61	0	0.00%	0.0	9	55.56%	1.1
Naga Siren	7	8.14%	46.79	38.53	4	75.00%	0.8	3	0.00%	0.4
Magnus	2	2.33%	45.87	3.67	1	100.00%	0.2	1	100.00%	0.1
Centaur Warrunner	7	8.14%	44.95	44.04	5	40.00%	1.0	2	100.00%	0.3
Nature's Prophet	4	4.65%	44.04	12.84	2	50.00%	0.4	2	100.00%	0.3
Enigma	4	4.65%	43.12	13.76	2	100.00%	0.4	2	0.00%	0.3
Dark Willow	6	6.98%	42.20	41.28	6	50.00%	1.2	0	0.00%	0.0
Shadow Shaman	3	3.49%	41.28	11.93	3	66.67%	0.6	0	0.00%	0.0
Dragon Knight	6	6.98%	40.37	39.45	4	50.00%	0.8	2	50.00%	0.3
Death Prophet	15	17.44%	39.45	83.49	6	33.33%	1.2	9	33.33%	1.1
Juggernaut	4	4.65%	38.53	24.77	3	66.67%	0.6	1	0.00%	0.1
Chen	4	4.65%	38.53	24.77	3	66.67%	0.6	1	0.00%	0.1
Tusk	4	4.65%	36.70	32.11	4	50.00%	0.8	0	0.00%	0.0
Skywrath Mage	3	3.49%	35.78	15.60	2	50.00%	0.4	1	100.00%	0.1
Undying	5	5.81%	34.86	40.37	4	50.00%	0.8	1	0.00%	0.1
Earthshaker	1	1.16%	33.94	2.75	1	100.00%	0.2	0	0.00%	0.0
Witch Doctor	1	1.16%	33.94	2.75	1	100.00%	0.2	0	0.00%	0.0
Anti-Mage	6	6.98%	32.11	47.71	4	50.00%	0.8	2	0.00%	0.3
Enchantress	16	18.60%	31.19	91.74	3	33.33%	0.6	13	23.08%	1.6
Lion	9	10.47%	30.28	75.23	8	25.00%	1.6	1	100.00%	0.1
Ogre Magi	6	6.98%	29.36	51.38	5	40.00%	1.0	1	0.00%	0.1
Oracle	2	2.33%	28.44	9.17	1	100.00%	0.2	1	0.00%	0.1
Abaddon	10	11.63%	27.52	79.82	5	20.00%	1.0	5	40.00%	0.6
Drow Ranger	9	10.47%	26.61	62.39	1	100.00%	0.2	8	12.50%	1.0
Sniper	3	3.49%	25.69	21.10	1	0.00%	0.2	2	100.00%	0.3
Winter Wyvern	5	5.81%	24.77	48.62	4	25.00%	0.8	1	100.00%	0.1
Visage	7	8.14%	23.85	56.88	3	33.33%	0.6	4	25.00%	0.5
Tinker	5	5.81%	22.94	36.70	0	0.00%	0.0	5	40.00%	0.6
Pudge	2	2.33%	22.02	20.18	2	50.00%	0.4	0	0.00%	0.0
Bristleback	2	2.33%	22.02	20.18	2	50.00%	0.4	0	0.00%	0.0
Brewmaster	2	2.33%	22.02	20.18	2	50.00%	0.4	0	0.00%	0.0
Clinkz	2	2.33%	22.02	20.18	2	50.00%	0.4	0	0.00%	0.0
Sven	4	4.65%	18.35	34.86	1	0.00%	0.2	3	66.67%	0.4
Axe	1	1.16%	17.43	7.34	0	0.00%	0.0	1	100.00%	0.1
Lone Druid	1	1.16%	17.43	7.34	0	0.00%	0.0	1	100.00%	0.1
Phoenix	1	1.16%	17.43	7.34	0	0.00%	0.0	1	100.00%	0.1
Arc Warden	1	1.16%	17.43	7.34	0	0.00%	0.0	1	100.00%	0.1
Huskar	4	4.65%	13.76	42.20	2	0.00%	0.4	2	100.00%	0.3
Hoodwink	10	11.63%	12.84	95.41	7	14.29%	1.4	3	33.33%	0.4
Windranger	2	2.33%	11.93	11.01	0	0.00%	0.0	2	50.00%	0.3
Pangolier	6	6.98%	11.01	66.97	4	0.00%	0.8	2	100.00%	0.3
Venomancer	2	2.33%	10.09	22.94	1	0.00%	0.2	1	100.00%	0.1
Silencer	4	4.65%	9.17	53.21	2	0.00%	0.4	2	50.00%	0.3
Keeper of the Light	2	2.33%	8.26	50.46	2	0.00%	0.4	0	0.00%	0.0
Slark	1	1.16%	7.34	31.19	1	0.00%	0.2	0	0.00%	0.0
Crystal Maiden	1	1.16%	7.34	31.19	1	0.00%	0.2	0	0.00%	0.0
Zeus	1	1.16%	5.50	16.51	0	0.00%	0.0	1	0.00%	0.1
Underlord	9	10.47%	4.59	100.00	4	0.00%	0.8	5	0.00%	0.6
Necrophos	1	1.16%	3.67	31.19	1	0.00%	0.2	0	0.00%	0.0
Warlock	1	1.16%	3.67	31.19	1	0.00%	0.2	0	0.00%	0.0
Chaos Knight	1	1.16%	3.67	31.19	1	0.00%	0.2	0	0.00%	0.0
Ancient Apparition	3	3.49%	0.92	55.05	1	0.00%	0.2	2	0.00%	0.3