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): 6 - Median hero bans (mb): 5 - Matches: 68

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

Balance rank	Winrate	Pickrate	Contest Rate
65.9	86.8	47.8	39.8

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Clockwerk	58	85.29%	100.00	80.41	20	70.00%	3.3	38	47.37%	7.6
Bristleback	30	44.12%	98.97	53.61	13	69.23%	2.2	17	58.82%	3.4
Batrider	24	35.29%	97.94	47.42	8	62.50%	1.3	16	75.00%	3.2
Templar Assassin	27	39.71%	96.91	49.48	9	66.67%	1.5	18	66.67%	3.6
Io	33	48.53%	95.88	60.82	8	100.00%	1.3	25	40.00%	5.0
Dazzle	13	19.12%	94.85	21.65	12	75.00%	2.0	1	100.00%	0.2
Venomancer	43	63.24%	93.81	72.16	11	45.45%	1.8	32	65.63%	6.4
Nature's Prophet	19	27.94%	92.78	40.21	8	75.00%	1.3	11	63.64%	2.2
Sand King	60	88.24%	91.75	92.78	33	51.52%	5.5	27	48.15%	5.4
Shadow Shaman	33	48.53%	90.72	67.01	12	50.00%	2.0	21	66.67%	4.2
Night Stalker	55	80.88%	89.69	89.69	19	57.89%	3.2	36	41.67%	7.2
Rubick	26	38.24%	88.66	63.92	21	52.38%	3.5	5	100.00%	1.0
Gyrocopter	16	23.53%	87.63	42.27	8	62.50%	1.3	8	75.00%	1.6
Ursa	12	17.65%	86.60	30.93	8	62.50%	1.3	4	100.00%	0.8
Lina	47	69.12%	85.57	90.72	28	53.57%	4.7	19	31.58%	3.8
Queen of Pain	42	61.76%	84.54	82.47	19	52.63%	3.2	23	43.48%	4.6
Puck	55	80.88%	83.51	98.97	26	50.00%	4.3	29	37.93%	5.8
Lifestealer	31	45.59%	82.47	75.26	12	75.00%	2.0	19	26.32%	3.8
Doom	9	13.24%	81.44	19.59	6	83.33%	1.0	3	33.33%	0.6
Shadow Fiend	15	22.06%	80.41	45.36	7	85.71%	1.2	8	25.00%	1.6
Crystal Maiden	27	39.71%	79.38	74.23	19	47.37%	3.2	8	75.00%	1.6
Sven	14	20.59%	78.35	48.45	9	55.56%	1.5	5	80.00%	1.0
Earthshaker	35	51.47%	77.32	84.54	25	48.00%	4.2	10	40.00%	2.0
Nyx Assassin	37	54.41%	76.29	85.57	15	46.67%	2.5	22	45.45%	4.4
Anti-Mage	11	16.18%	75.26	31.96	4	75.00%	0.7	7	57.14%	1.4
Weaver	22	32.35%	74.23	68.04	7	42.86%	1.2	15	60.00%	3.0
Disruptor	15	22.06%	73.20	56.70	12	58.33%	2.0	3	33.33%	0.6
Silencer	20	29.41%	72.16	69.07	14	42.86%	2.3	6	83.33%	1.2
Enigma	19	27.94%	71.13	64.95	10	60.00%	1.7	9	33.33%	1.8
Timbersaw	6	8.82%	70.10	12.37	3	66.67%	0.5	3	100.00%	0.6
Clinkz	10	14.71%	69.07	41.24	8	62.50%	1.3	2	50.00%	0.4
Necrophos	21	30.88%	68.04	71.13	12	41.67%	2.0	9	66.67%	1.8
Legion Commander	33	48.53%	67.01	96.91	22	45.45%	3.7	11	18.18%	2.2
Razor	33	48.53%	65.98	97.94	14	21.43%	2.3	19	63.16%	3.8
Drow Ranger	18	26.47%	64.95	70.10	8	37.50%	1.3	10	60.00%	2.0
Abaddon	9	13.24%	63.92	46.39	7	57.14%	1.2	2	50.00%	0.4
Dark Seer	31	45.59%	62.89	100.00	11	27.27%	1.8	20	45.00%	4.0
Medusa	8	11.76%	61.86	36.08	4	50.00%	0.7	4	75.00%	0.8
Centaur Warrunner	2	2.94%	60.82	5.15	2	100.00%	0.3	0	0.00%	0.0
Lycan	8	11.76%	59.79	38.14	4	75.00%	0.7	4	25.00%	0.8
Warlock	11	16.18%	58.76	61.86	8	50.00%	1.3	3	33.33%	0.6
Slardar	10	14.71%	57.73	52.58	6	66.67%	1.0	4	0.00%	0.8
Oracle	4	5.88%	56.70	13.40	3	66.67%	0.5	1	100.00%	0.2
Bounty Hunter	5	7.35%	55.67	23.71	5	60.00%	0.8	0	0.00%	0.0
Outworld Destroyer	11	16.18%	54.64	58.76	4	50.00%	0.7	7	42.86%	1.4
Faceless Void	14	20.59%	53.61	77.32	8	37.50%	1.3	6	50.00%	1.2
Magnus	2	2.94%	52.58	3.09	1	100.00%	0.2	1	100.00%	0.2
Axe	2	2.94%	52.58	3.09	1	100.00%	0.2	1	100.00%	0.2
Ancient Apparition	14	20.59%	50.52	76.29	6	33.33%	1.0	8	50.00%	1.6
Omniknight	13	19.12%	49.48	73.20	5	40.00%	0.8	8	37.50%	1.6
Dragon Knight	6	8.82%	48.45	22.68	1	0.00%	0.2	5	80.00%	1.0
Spirit Breaker	9	13.24%	47.42	62.89	8	37.50%	1.3	1	100.00%	0.2
Mirana	7	10.29%	46.39	50.52	6	50.00%	1.0	1	0.00%	0.2
Invoker	18	26.47%	45.36	94.85	11	27.27%	1.8	7	42.86%	1.4
Ember Spirit	17	25.00%	44.33	88.66	8	25.00%	1.3	9	44.44%	1.8
Meepo	14	20.59%	43.30	78.35	0	0.00%	0.0	14	35.71%	2.8
Terrorblade	6	8.82%	42.27	37.11	2	0.00%	0.3	4	100.00%	0.8
Juggernaut	14	20.59%	41.24	83.51	8	37.50%	1.3	6	16.67%	1.2
Chaos Knight	5	7.35%	40.21	34.02	3	33.33%	0.5	2	100.00%	0.4
Lone Druid	4	5.88%	39.18	17.53	1	100.00%	0.2	3	33.33%	0.6
Jakiro	4	5.88%	38.14	32.99	4	50.00%	0.7	0	0.00%	0.0
Kunkka	8	11.76%	37.11	65.98	6	33.33%	1.0	2	50.00%	0.4
Windranger	3	4.41%	36.08	14.43	2	50.00%	0.3	1	100.00%	0.2
Elder Titan	1	1.47%	35.05	8.25	1	100.00%	0.2	0	0.00%	0.0
Sniper	1	1.47%	35.05	1.03	1	100.00%	0.2	0	0.00%	0.0
Slark	1	1.47%	35.05	11.34	1	100.00%	0.2	0	0.00%	0.0
Wraith King	1	1.47%	35.05	11.34	1	100.00%	0.2	0	0.00%	0.0
Winter Wyvern	1	1.47%	35.05	4.12	1	100.00%	0.2	0	0.00%	0.0
Riki	6	8.82%	29.90	51.55	4	50.00%	0.7	2	0.00%	0.4
Storm Spirit	14	20.59%	28.87	95.88	9	22.22%	1.5	5	40.00%	1.0
Treant Protector	4	5.88%	27.84	24.74	2	50.00%	0.3	2	50.00%	0.4
Earth Spirit	12	17.65%	26.80	87.63	7	14.29%	1.2	5	60.00%	1.0
Enchantress	12	17.65%	25.77	81.44	3	33.33%	0.5	9	22.22%	1.8
Bane	4	5.88%	24.74	39.18	3	33.33%	0.5	1	100.00%	0.2
Troll Warlord	6	8.82%	23.71	57.73	3	33.33%	0.5	3	33.33%	0.6
Phoenix	5	7.35%	22.68	54.64	4	25.00%	0.7	1	100.00%	0.2
Keeper of the Light	11	16.18%	21.65	93.81	7	14.29%	1.2	4	50.00%	0.8
Lich	2	2.94%	20.62	18.56	2	50.00%	0.3	0	0.00%	0.0
Broodmother	1	1.47%	19.59	9.28	0	0.00%	0.0	1	100.00%	0.2
Visage	1	1.47%	19.59	7.22	0	0.00%	0.0	1	100.00%	0.2
Huskar	1	1.47%	19.59	7.22	0	0.00%	0.0	1	100.00%	0.2
Vengeful Spirit	3	4.41%	16.49	44.33	3	33.33%	0.5	0	0.00%	0.0
Witch Doctor	3	4.41%	16.49	44.33	3	33.33%	0.5	0	0.00%	0.0
Viper	4	5.88%	14.43	59.79	4	25.00%	0.7	0	0.00%	0.0
Bloodseeker	2	2.94%	13.40	20.62	1	0.00%	0.2	1	100.00%	0.2
Death Prophet	7	10.29%	12.37	91.75	3	0.00%	0.5	4	25.00%	0.8
Tinker	1	1.47%	11.34	16.49	0	0.00%	0.0	1	0.00%	0.2
Naga Siren	1	1.47%	11.34	16.49	0	0.00%	0.0	1	0.00%	0.2
Leshrac	1	1.47%	9.28	29.90	1	0.00%	0.2	0	0.00%	0.0
Pudge	2	2.94%	8.25	55.67	2	0.00%	0.3	0	0.00%	0.0
Tidehunter	1	1.47%	7.22	29.90	1	0.00%	0.2	0	0.00%	0.0
Phantom Lancer	2	2.94%	6.19	35.05	0	0.00%	0.0	2	0.00%	0.4
Underlord	3	4.41%	5.15	79.38	3	0.00%	0.5	0	0.00%	0.0
Phantom Assassin	1	1.47%	4.12	29.90	1	0.00%	0.2	0	0.00%	0.0
Pugna	1	1.47%	4.12	29.90	1	0.00%	0.2	0	0.00%	0.0
Luna	1	1.47%	4.12	29.90	1	0.00%	0.2	0	0.00%	0.0
Tusk	5	7.35%	1.03	87.63	2	0.00%	0.3	3	0.00%	0.6