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): 12 - Matches: 132

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

Balance rank	Winrate	Pickrate	Contest Rate
63.9	89.2	37.9	40.3

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Beastmaster	97	73.48%	100.00	61.42	37	59.46%	4.1	60	63.33%	5.0
Medusa	97	73.48%	91.62	69.17	31	61.29%	3.4	66	53.03%	5.5
Dark Seer	48	36.36%	89.36	45.12	17	76.47%	1.9	31	51.61%	2.6
Windranger	53	40.15%	88.09	50.91	26	61.54%	2.9	27	62.96%	2.3
Queen of Pain	56	42.42%	86.10	53.43	18	72.22%	2.0	38	50.00%	3.2
Templar Assassin	65	49.24%	84.68	59.95	16	56.25%	1.8	49	59.18%	4.1
Techies	105	79.55%	84.07	80.52	59	52.54%	6.6	46	50.00%	3.8
Ember Spirit	86	65.15%	83.26	72.92	35	54.29%	3.9	51	52.94%	4.3
Clockwerk	57	43.18%	82.74	58.83	31	58.06%	3.4	26	57.69%	2.2
Batrider	108	81.82%	81.00	84.57	40	52.50%	4.4	68	47.06%	5.7
Spirit Breaker	84	63.64%	80.66	74.93	43	60.47%	4.8	41	36.59%	3.4
Monkey King	91	68.94%	79.35	78.42	17	41.18%	1.9	74	55.41%	6.2
Disruptor	53	40.15%	79.14	59.87	30	56.67%	3.3	23	56.52%	1.9
Timbersaw	89	67.42%	78.99	78.61	36	58.33%	4.0	53	41.51%	4.4
Lich	19	14.39%	77.30	27.96	16	75.00%	1.8	3	0.00%	0.3
Phantom Assassin	5	3.79%	75.92	0.00	4	100.00%	0.4	1	100.00%	0.1
Doom	99	75.00%	75.76	86.12	31	35.48%	3.4	68	58.82%	5.7
Bounty Hunter	37	28.03%	75.18	49.65	17	76.47%	1.9	20	30.00%	1.7
Storm Spirit	74	56.06%	74.74	75.28	23	43.48%	2.6	51	56.86%	4.3
Magnus	65	49.24%	74.06	72.41	38	55.26%	4.2	27	40.74%	2.3
Underlord	52	39.39%	73.82	63.11	20	60.00%	2.2	32	46.88%	2.7
Anti-Mage	29	21.97%	72.41	38.16	3	66.67%	0.3	26	61.54%	2.2
Rubick	73	55.30%	68.99	81.98	42	42.86%	4.7	31	58.06%	2.6
Morphling	78	59.09%	68.68	83.53	21	38.10%	2.3	57	52.63%	4.8
Skywrath Mage	54	40.91%	65.47	73.99	27	44.44%	3.0	27	55.56%	2.3
Naga Siren	53	40.15%	65.19	71.36	12	75.00%	1.3	41	34.15%	3.4
Shadow Fiend	51	38.64%	65.03	70.80	16	62.50%	1.8	35	37.14%	2.9
Enchantress	45	34.09%	64.65	67.69	21	57.14%	2.3	24	37.50%	2.0
Lycan	14	10.61%	63.81	21.02	5	80.00%	0.6	9	55.56%	0.8
Tidehunter	29	21.97%	63.73	52.91	17	52.94%	1.9	12	58.33%	1.0
Keeper of the Light	51	38.64%	62.61	74.52	23	52.17%	2.6	28	39.29%	2.3
Sven	26	19.70%	62.04	48.68	12	50.00%	1.3	14	64.29%	1.2
Mirana	31	23.48%	62.04	58.77	23	52.17%	2.6	8	50.00%	0.7
Undying	54	40.91%	61.50	77.25	20	40.00%	2.2	34	52.94%	2.8
Slark	63	47.73%	61.28	82.12	11	36.36%	1.2	52	48.08%	4.3
Pangolier	71	53.79%	61.05	88.63	27	40.74%	3.0	44	45.45%	3.7
Drow Ranger	5	3.79%	61.00	0.00	1	100.00%	0.1	4	100.00%	0.3
Mars	23	17.42%	58.35	48.07	12	50.00%	1.3	11	63.64%	0.9
Terrorblade	65	49.24%	56.90	89.18	20	30.00%	2.2	45	51.11%	3.8
Venomancer	29	21.97%	54.65	59.98	12	33.33%	1.3	17	70.59%	1.4
Faceless Void	23	17.42%	54.64	46.76	5	60.00%	0.6	18	50.00%	1.5
Snapfire	35	26.52%	54.39	70.41	22	45.45%	2.4	13	46.15%	1.1
Shadow Demon	17	12.88%	54.22	42.08	12	50.00%	1.3	5	80.00%	0.4
Alchemist	33	25.00%	54.02	66.20	14	50.00%	1.6	19	42.11%	1.6
Pugna	42	31.82%	52.83	79.17	26	46.15%	2.9	16	31.25%	1.3
Bloodseeker	75	56.82%	52.07	100.00	14	28.57%	1.6	61	40.98%	5.1
Puck	44	33.33%	51.45	78.03	8	25.00%	0.9	36	50.00%	3.0
Legion Commander	25	18.94%	51.15	57.13	10	40.00%	1.1	15	60.00%	1.3
Troll Warlord	18	13.64%	51.03	41.61	6	33.33%	0.7	12	75.00%	1.0
Oracle	43	32.58%	50.45	81.99	23	39.13%	2.6	20	45.00%	1.7
Abaddon	7	5.30%	50.13	10.24	4	75.00%	0.4	3	66.67%	0.3
Void Spirit	58	43.94%	49.16	95.35	34	32.35%	3.8	24	50.00%	2.0
Silencer	34	25.76%	48.90	73.33	15	46.67%	1.7	19	36.84%	1.6
Chen	3	2.27%	48.09	0.00	2	100.00%	0.2	1	100.00%	0.1
Chaos Knight	24	18.18%	47.12	58.61	8	75.00%	0.9	16	18.75%	1.3
Death Prophet	17	12.88%	45.92	47.62	9	44.44%	1.0	8	62.50%	0.7
Phantom Lancer	32	24.24%	44.19	71.38	4	50.00%	0.4	28	39.29%	2.3
Crystal Maiden	20	15.15%	43.67	61.26	16	43.75%	1.8	4	50.00%	0.3
Ursa	36	27.27%	42.54	81.55	11	54.55%	1.2	25	24.00%	2.1
Luna	11	8.33%	41.03	36.37	8	50.00%	0.9	3	66.67%	0.3
Lone Druid	4	3.03%	40.67	2.29	2	100.00%	0.2	2	50.00%	0.2
Juggernaut	23	17.42%	38.78	71.13	15	40.00%	1.7	8	37.50%	0.7
Broodmother	11	8.33%	38.30	32.36	4	50.00%	0.4	7	57.14%	0.6
Kunkka	17	12.88%	38.18	51.52	5	40.00%	0.6	12	50.00%	1.0
Omniknight	6	4.55%	37.88	12.11	3	66.67%	0.3	3	66.67%	0.3
Visage	14	10.61%	36.50	49.58	8	50.00%	0.9	6	33.33%	0.5
Leshrac	14	10.61%	35.08	43.65	3	66.67%	0.3	11	36.36%	0.9
Clinkz	16	12.12%	34.26	60.57	11	45.45%	1.2	5	20.00%	0.4
Huskar	16	12.12%	34.03	49.24	2	50.00%	0.2	14	42.86%	1.2
Muerta	9	6.82%	32.14	33.33	5	40.00%	0.6	4	75.00%	0.3
Earth Spirit	8	6.06%	31.25	32.49	6	50.00%	0.7	2	50.00%	0.2
Dawnbreaker	14	10.61%	29.40	55.19	6	16.67%	0.7	8	75.00%	0.7
Tiny	7	5.30%	28.19	29.23	5	40.00%	0.6	2	100.00%	0.2
Dragon Knight	8	6.06%	26.58	35.32	5	40.00%	0.6	3	66.67%	0.3
Invoker	7	5.30%	25.63	26.58	3	33.33%	0.3	4	75.00%	0.3
Lion	3	2.27%	25.26	7.51	3	66.67%	0.3	0	0.00%	0.0
Primal Beast	6	4.55%	24.65	25.62	4	50.00%	0.4	2	50.00%	0.2
Witch Doctor	6	4.55%	22.18	31.15	5	40.00%	0.6	1	100.00%	0.1
Phoenix	6	4.55%	22.18	31.15	5	40.00%	0.6	1	100.00%	0.1
Viper	2	1.52%	21.39	0.00	0	0.00%	0.0	2	100.00%	0.2
Treant Protector	13	9.85%	21.33	67.70	9	22.22%	1.0	4	75.00%	0.3
Earthshaker	1	0.76%	18.10	0.00	1	100.00%	0.1	0	0.00%	0.0
Necrophos	1	0.76%	18.10	0.00	1	100.00%	0.1	0	0.00%	0.0
Brewmaster	1	0.76%	18.10	0.00	1	100.00%	0.1	0	0.00%	0.0
Dark Willow	11	8.33%	13.58	74.18	9	22.22%	1.0	2	50.00%	0.2
Wraith King	5	3.79%	12.57	31.60	3	33.33%	0.3	2	50.00%	0.2
Elder Titan	5	3.79%	12.57	31.60	3	33.33%	0.3	2	50.00%	0.2
Ogre Magi	2	1.52%	9.99	10.39	2	50.00%	0.2	0	0.00%	0.0
Meepo	2	1.52%	9.99	10.39	2	50.00%	0.2	0	0.00%	0.0
Outworld Destroyer	1	0.76%	9.64	0.00	0	0.00%	0.0	1	100.00%	0.1
Night Stalker	4	3.03%	9.47	20.51	1	0.00%	0.1	3	66.67%	0.3
Tinker	3	2.27%	8.74	19.09	2	50.00%	0.2	1	0.00%	0.1
Centaur Warrunner	4	3.03%	7.83	28.07	2	0.00%	0.2	2	100.00%	0.2
Tusk	9	6.82%	7.19	76.11	7	14.29%	0.8	2	50.00%	0.2
Lifestealer	4	3.03%	6.65	35.10	3	33.33%	0.3	1	0.00%	0.1
Nyx Assassin	5	3.79%	5.47	49.46	4	25.00%	0.4	1	0.00%	0.1
Enigma	2	1.52%	3.65	14.14	1	0.00%	0.1	1	100.00%	0.1
Weaver	2	1.52%	3.65	14.14	1	0.00%	0.1	1	100.00%	0.1
Lina	3	2.27%	3.05	24.51	1	0.00%	0.1	2	50.00%	0.2
Marci	3	2.27%	0.00	49.99	2	0.00%	0.2	1	0.00%	0.1
Ancient Apparition	3	2.27%	0.00	42.77	1	0.00%	0.1	2	0.00%	0.2
Winter Wyvern	2	1.52%	0.00	31.09	1	0.00%	0.1	1	0.00%	0.1
Bristleback	1	0.76%	0.00	18.81	1	0.00%	0.1	0	0.00%	0.0
Jakiro	1	0.76%	0.00	18.81	1	0.00%	0.1	0	0.00%	0.0
Vengeful Spirit	1	0.76%	0.00	10.02	0	0.00%	0.0	1	0.00%	0.1