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.
Number of bans is calculated approximately based on ratio of matches on the position to all matches of the hero.
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
41.2	44.7	40.1	32.8

Hero	Position	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Templar Assassin	Core Midlane	27	39.71%	100.00	67.70	9	66.67%	1.5	18	66.67%	3.6
Venomancer	Core Safelane	35	51.47%	99.38	80.12	9	55.56%	1.5	26	65.63%	5.2
Clockwerk	Support Offlane	44	64.71%	98.76	87.58	15	66.67%	2.5	29	47.37%	5.8
Io	Support Offlane	29	42.65%	98.14	77.02	7	100.00%	1.2	22	40.00%	4.4
Rubick	Support Offlane	24	35.29%	97.52	73.91	19	57.89%	3.2	5	100.00%	1.0
Night Stalker	Support Offlane	52	76.47%	96.89	91.93	18	61.11%	3.0	34	41.67%	6.8
Dazzle	Support Safelane	4	5.88%	96.27	10.56	4	100.00%	0.7	0	100.00%	0.0
Sand King	Support Offlane	56	82.35%	95.65	98.14	31	48.39%	5.2	25	48.15%	5.0
Nature's Prophet	Core Offlane	12	17.65%	95.03	34.16	5	80.00%	0.8	7	63.64%	1.4
Puck	Core Midlane	38	55.88%	94.41	89.44	18	61.11%	3.0	20	37.93%	4.0
Bristleback	Core Safelane	16	23.53%	93.79	59.01	7	71.43%	1.2	9	58.82%	1.8
Ursa	Core Safelane	12	17.65%	93.17	50.93	8	62.50%	1.3	4	100.00%	0.8
Lina	Core Midlane	45	66.18%	92.55	92.55	27	55.56%	4.5	18	31.58%	3.6
Queen of Pain	Core Midlane	42	61.76%	91.93	91.30	19	52.63%	3.2	23	43.48%	4.6
Doom	Support Offlane	9	13.24%	91.30	30.43	6	83.33%	1.0	3	33.33%	0.6
Shadow Fiend	Core Midlane	15	22.06%	90.68	63.98	7	85.71%	1.2	8	25.00%	1.6
Batrider	Core Offlane	6	8.82%	90.06	16.15	2	100.00%	0.3	4	75.00%	0.8
Bristleback	Core Offlane	14	20.59%	89.44	60.87	6	66.67%	1.0	8	58.82%	1.6
Sven	Core Safelane	14	20.59%	88.82	65.84	9	55.56%	1.5	5	80.00%	1.0
Nyx Assassin	Support Offlane	37	54.41%	88.20	93.17	15	46.67%	2.5	22	45.45%	4.4
Anti-Mage	Core Safelane	11	16.18%	87.58	52.17	4	75.00%	0.7	7	57.14%	1.4
Lifestealer	Core Safelane	26	38.24%	86.96	86.34	10	70.00%	1.7	16	26.32%	3.2
Shadow Shaman	Support Offlane	6	8.82%	86.34	18.01	2	100.00%	0.3	4	66.67%	0.8
Shadow Shaman	Support Safelane	25	36.76%	85.71	86.96	9	33.33%	1.5	16	66.67%	3.2
Dazzle	Support Offlane	9	13.24%	85.09	52.80	8	62.50%	1.3	1	100.00%	0.2
Batrider	Support Offlane	15	22.06%	84.47	68.94	5	40.00%	0.8	10	75.00%	2.0
Necrophos	Core Safelane	19	27.94%	83.85	83.23	11	45.45%	1.8	8	66.67%	1.6
Earthshaker	Core Offlane	22	32.35%	83.23	88.82	16	50.00%	2.7	6	40.00%	1.2
Weaver	Core Offlane	6	8.82%	82.61	19.88	2	100.00%	0.3	4	60.00%	0.8
Gyrocopter	Core Offlane	4	5.88%	81.99	11.18	2	100.00%	0.3	2	75.00%	0.4
Clinkz	Core Safelane	10	14.71%	81.37	58.39	8	62.50%	1.3	2	50.00%	0.4
Crystal Maiden	Support Offlane	20	29.41%	80.75	85.71	14	42.86%	2.3	6	75.00%	1.2
Gyrocopter	Core Safelane	12	17.65%	80.12	65.22	6	50.00%	1.0	6	75.00%	1.2
Enigma	Core Offlane	17	25.00%	79.50	83.85	9	55.56%	1.5	8	33.33%	1.6
Clockwerk	Support Safelane	6	8.82%	78.88	21.12	2	100.00%	0.3	4	47.37%	0.8
Disruptor	Support Safelane	11	16.18%	78.26	70.19	9	55.56%	1.5	2	33.33%	0.4
Medusa	Core Safelane	6	8.82%	77.64	27.95	3	66.67%	0.5	3	75.00%	0.6
Nature's Prophet	Core Safelane	7	10.29%	77.02	32.92	3	66.67%	0.5	4	63.64%	0.8
Crystal Maiden	Support Safelane	7	10.29%	76.40	39.13	5	60.00%	0.8	2	75.00%	0.4
Silencer	Support Safelane	9	13.24%	75.78	62.11	6	50.00%	1.0	3	83.33%	0.6
Warlock	Support Safelane	10	14.71%	75.16	68.32	7	57.14%	1.2	3	33.33%	0.6
Centaur Warrunner	Core Offlane	2	2.94%	74.53	6.83	2	100.00%	0.3	0	0.00%	0.0
Lycan	Core Safelane	8	11.76%	73.91	54.66	4	75.00%	0.7	4	25.00%	0.8
Silencer	Support Offlane	10	14.71%	73.29	73.29	7	42.86%	1.2	3	83.33%	0.6
Legion Commander	Core Offlane	27	39.71%	72.67	100.00	18	38.89%	3.0	9	18.18%	1.8
Slardar	Support Offlane	10	14.71%	72.05	70.81	6	66.67%	1.0	4	0.00%	0.8
Legion Commander	Support Offlane	3	4.41%	71.43	15.53	2	100.00%	0.3	1	18.18%	0.2
Drow Ranger	Core Safelane	14	20.59%	70.81	84.47	6	33.33%	1.0	8	60.00%	1.6
Lifestealer	Core Offlane	5	7.35%	70.19	22.98	2	100.00%	0.3	3	26.32%	0.6
Weaver	Core Safelane	16	23.53%	69.57	88.20	5	20.00%	0.8	11	60.00%	2.2
Batrider	Core Midlane	3	4.41%	68.94	11.80	1	100.00%	0.2	2	75.00%	0.4
Bounty Hunter	Support Offlane	5	7.35%	68.32	35.40	5	60.00%	0.8	0	0.00%	0.0
Outworld Destroyer	Core Midlane	11	16.18%	67.70	77.64	4	50.00%	0.7	7	42.86%	1.4
Dark Seer	Core Offlane	25	36.76%	67.08	99.38	9	22.22%	1.5	16	45.00%	3.2
Timbersaw	Core Midlane	2	2.94%	66.46	6.21	1	100.00%	0.2	1	100.00%	0.2
Axe	Core Offlane	2	2.94%	65.84	7.45	1	100.00%	0.2	1	100.00%	0.2
Magnus	Core Offlane	2	2.94%	65.84	5.59	1	100.00%	0.2	1	100.00%	0.2
Shadow Shaman	Core Safelane	3	4.41%	64.60	13.66	1	100.00%	0.2	2	66.67%	0.4
Spirit Breaker	Support Offlane	8	11.76%	63.98	72.67	7	42.86%	1.2	1	100.00%	0.2
Timbersaw	Core Offlane	4	5.88%	63.35	21.74	2	50.00%	0.3	2	100.00%	0.4
Razor	Core Safelane	19	27.94%	62.73	96.27	8	12.50%	1.3	11	63.16%	2.2
Faceless Void	Support Offlane	7	10.29%	62.11	63.35	4	50.00%	0.7	3	50.00%	0.6
Disruptor	Support Offlane	4	5.88%	61.49	29.81	3	66.67%	0.5	1	33.33%	0.2
Dragon Knight	Core Midlane	6	8.82%	60.87	34.78	1	0.00%	0.2	5	80.00%	1.0
Ember Spirit	Core Midlane	15	22.06%	60.25	90.06	7	28.57%	1.2	8	44.44%	1.6
Invoker	Core Midlane	18	26.47%	59.63	98.76	11	27.27%	1.8	7	42.86%	1.4
Clockwerk	Core Safelane	3	4.41%	59.01	18.63	1	100.00%	0.2	2	47.37%	0.4
Io	Support Safelane	4	5.88%	58.39	22.36	1	100.00%	0.2	3	40.00%	0.6
Dark Seer	Core Safelane	3	4.41%	57.76	19.25	1	100.00%	0.2	2	45.00%	0.4
Drow Ranger	Core Offlane	5	7.35%	57.14	37.89	2	50.00%	0.3	3	60.00%	0.6
Abaddon	Core Offlane	5	7.35%	56.52	55.28	4	50.00%	0.7	1	50.00%	0.2
Razor	Core Offlane	7	10.29%	55.90	67.08	3	33.33%	0.5	4	63.16%	0.8
Razor	Core Midlane	7	10.29%	55.28	66.46	3	33.33%	0.5	4	63.16%	0.8
Clockwerk	Core Offlane	6	8.82%	54.66	57.14	2	50.00%	0.3	4	47.37%	0.8
Sand King	Core Safelane	2	2.94%	54.04	13.04	1	100.00%	0.2	1	48.15%	0.2
Sand King	Core Offlane	2	2.94%	53.42	12.42	1	100.00%	0.2	1	48.15%	0.2
Omniknight	Core Safelane	3	4.41%	52.80	20.50	1	100.00%	0.2	2	37.50%	0.4
Lone Druid	Core Safelane	4	5.88%	52.17	26.09	1	100.00%	0.2	3	33.33%	0.6
Kunkka	Support Offlane	8	11.76%	51.55	81.99	6	33.33%	1.0	2	50.00%	0.4
Bane	Support Offlane	3	4.41%	50.93	24.84	2	50.00%	0.3	1	100.00%	0.2
Windranger	Core Offlane	3	4.41%	50.31	24.22	2	50.00%	0.3	1	100.00%	0.2
Chaos Knight	Core Midlane	3	4.41%	49.69	25.47	2	50.00%	0.3	1	100.00%	0.2
Oracle	Support Safelane	3	4.41%	49.07	23.60	2	50.00%	0.3	1	100.00%	0.2
Venomancer	Core Offlane	8	11.76%	48.45	74.53	2	0.00%	0.3	6	65.63%	1.2
Troll Warlord	Core Midlane	2	2.94%	47.83	14.91	1	100.00%	0.2	1	33.33%	0.2
Enigma	Core Midlane	2	2.94%	47.83	14.91	1	100.00%	0.2	1	33.33%	0.2
Ancient Apparition	Support Offlane	7	10.29%	46.58	72.05	3	33.33%	0.5	4	50.00%	0.8
Ancient Apparition	Support Safelane	7	10.29%	45.96	71.43	3	33.33%	0.5	4	50.00%	0.8
Slark	Core Safelane	1	1.47%	45.34	1.24	1	100.00%	0.2	0	0.00%	0.0
Sniper	Core Midlane	1	1.47%	44.72	1.86	1	100.00%	0.2	0	0.00%	0.0
Elder Titan	Support Offlane	1	1.47%	44.10	2.48	1	100.00%	0.2	0	0.00%	0.0
Mirana	Core Safelane	1	1.47%	43.48	3.73	1	100.00%	0.2	0	0.00%	0.0
Winter Wyvern	Support Offlane	1	1.47%	42.86	4.35	1	100.00%	0.2	0	0.00%	0.0
Oracle	Support Offlane	1	1.47%	42.24	4.97	1	100.00%	0.2	0	100.00%	0.0
Wraith King	Core Safelane	1	1.47%	41.61	8.07	1	100.00%	0.2	0	0.00%	0.0
Abaddon	Support Offlane	1	1.47%	40.99	9.32	1	100.00%	0.2	0	50.00%	0.0
Witch Doctor	Support Safelane	1	1.47%	40.37	8.70	1	100.00%	0.2	0	0.00%	0.0
Earthshaker	Core Midlane	1	1.47%	39.75	9.94	1	100.00%	0.2	0	40.00%	0.0
Vengeful Spirit	Core Safelane	1	1.47%	39.13	1.24	1	100.00%	0.2	0	0.00%	0.0
Jakiro	Core Midlane	1	1.47%	38.51	3.11	1	100.00%	0.2	0	0.00%	0.0
Earthshaker	Support Offlane	8	11.76%	37.89	85.09	6	33.33%	1.0	2	40.00%	0.4
Riki	Support Offlane	6	8.82%	37.27	69.57	4	50.00%	0.7	2	0.00%	0.4
Storm Spirit	Core Midlane	12	17.65%	36.65	93.79	8	25.00%	1.3	4	40.00%	0.8
Faceless Void	Core Offlane	4	5.88%	36.02	36.65	2	50.00%	0.3	2	50.00%	0.4
Treant Protector	Support Offlane	4	5.88%	35.40	36.02	2	50.00%	0.3	2	50.00%	0.4
Omniknight	Support Offlane	8	11.76%	34.78	80.75	3	33.33%	0.5	5	37.50%	1.0
Juggernaut	Support Offlane	2	2.94%	34.16	17.39	1	100.00%	0.2	1	16.67%	0.2
Juggernaut	Core Midlane	2	2.94%	33.54	16.77	1	100.00%	0.2	1	16.67%	0.2
Mirana	Core Midlane	6	8.82%	32.92	78.26	5	40.00%	0.8	1	0.00%	0.2
Earth Spirit	Support Offlane	12	17.65%	32.30	95.03	7	14.29%	1.2	5	60.00%	1.0
Puck	Core Safelane	4	5.88%	31.68	51.55	2	50.00%	0.3	2	37.93%	0.4
Enchantress	Support Offlane	8	11.76%	31.06	81.37	2	50.00%	0.3	6	22.22%	1.2
Puck	Core Offlane	13	19.12%	30.43	97.52	6	16.67%	1.0	7	37.93%	1.4
Phoenix	Support Offlane	4	5.88%	29.81	56.52	3	33.33%	0.5	1	100.00%	0.2
Abaddon	Core Safelane	3	4.41%	29.19	31.06	2	50.00%	0.3	1	50.00%	0.2
Earthshaker	Core Safelane	3	4.41%	28.57	33.54	2	50.00%	0.3	1	40.00%	0.2
Terrorblade	Core Midlane	3	4.41%	27.95	29.19	1	0.00%	0.2	2	100.00%	0.4
Terrorblade	Core Safelane	3	4.41%	27.33	28.57	1	0.00%	0.2	2	100.00%	0.4
Legion Commander	Core Safelane	3	4.41%	26.71	37.27	2	50.00%	0.3	1	18.18%	0.2
Keeper of the Light	Support Offlane	9	13.24%	26.09	90.68	6	16.67%	1.0	3	50.00%	0.6
Jakiro	Support Safelane	2	2.94%	25.47	27.33	2	50.00%	0.3	0	0.00%	0.0
Lich	Support Offlane	2	2.94%	24.84	26.71	2	50.00%	0.3	0	0.00%	0.0
Viper	Core Midlane	3	4.41%	24.22	59.63	3	33.33%	0.5	0	0.00%	0.0
Juggernaut	Core Safelane	9	13.24%	23.60	95.65	5	20.00%	0.8	4	16.67%	0.8
Bloodseeker	Core Safelane	2	2.94%	22.98	32.30	1	0.00%	0.2	1	100.00%	0.2
Chaos Knight	Core Safelane	2	2.94%	22.98	32.30	1	0.00%	0.2	1	100.00%	0.2
Dark Seer	Support Offlane	3	4.41%	21.74	60.25	1	0.00%	0.2	2	45.00%	0.4
Faceless Void	Core Safelane	4	5.88%	21.12	79.50	2	0.00%	0.3	2	50.00%	0.4
Night Stalker	Support Safelane	3	4.41%	20.50	61.49	1	0.00%	0.2	2	41.67%	0.4
Medusa	Core Midlane	2	2.94%	19.88	38.51	1	0.00%	0.2	1	75.00%	0.2
Omniknight	Core Offlane	3	4.41%	19.25	64.60	1	0.00%	0.2	2	37.50%	0.4
Death Prophet	Core Midlane	7	10.29%	18.63	96.89	3	0.00%	0.5	4	25.00%	0.8
Necrophos	Core Offlane	2	2.94%	18.01	50.31	1	0.00%	0.2	1	66.67%	0.2
Enchantress	Core Midlane	4	5.88%	17.39	78.88	1	0.00%	0.2	3	22.22%	0.6
Troll Warlord	Core Safelane	4	5.88%	16.77	82.61	2	0.00%	0.3	2	33.33%	0.4
Keeper of the Light	Support Safelane	2	2.94%	16.15	53.42	1	0.00%	0.2	1	50.00%	0.2
Ember Spirit	Core Safelane	2	2.94%	15.53	54.04	1	0.00%	0.2	1	44.44%	0.2
Storm Spirit	Support Offlane	2	2.94%	14.91	55.90	1	0.00%	0.2	1	40.00%	0.2
Lina	Support Offlane	2	2.94%	14.29	57.76	1	0.00%	0.2	1	31.58%	0.2
Juggernaut	Core Offlane	2	2.94%	13.66	62.73	1	0.00%	0.2	1	16.67%	0.2
Phantom Assassin	Core Safelane	1	1.47%	13.04	44.72	1	0.00%	0.2	0	0.00%	0.0
Tidehunter	Core Offlane	1	1.47%	12.42	45.34	1	0.00%	0.2	0	0.00%	0.0
Pugna	Support Safelane	1	1.47%	11.80	45.96	1	0.00%	0.2	0	0.00%	0.0
Phoenix	Support Safelane	1	1.47%	11.18	49.69	1	0.00%	0.2	0	100.00%	0.0
Bane	Support Safelane	1	1.47%	11.18	41.61	1	0.00%	0.2	0	100.00%	0.0
Spirit Breaker	Support Safelane	1	1.47%	11.18	40.37	1	0.00%	0.2	0	100.00%	0.0
Tusk	Support Offlane	5	7.35%	9.32	94.41	2	0.00%	0.3	3	0.00%	0.6
Jakiro	Core Offlane	1	1.47%	8.70	48.45	1	0.00%	0.2	0	0.00%	0.0
Vengeful Spirit	Core Offlane	1	1.47%	8.70	43.48	1	0.00%	0.2	0	0.00%	0.0
Underlord	Core Offlane	1	1.47%	8.70	42.24	1	0.00%	0.2	0	0.00%	0.0
Pudge	Support Offlane	2	2.94%	6.83	75.78	2	0.00%	0.3	0	0.00%	0.0
Silencer	Core Midlane	1	1.47%	6.21	40.99	1	0.00%	0.2	0	83.33%	0.0
Underlord	Core Safelane	1	1.47%	5.59	44.72	1	0.00%	0.2	0	0.00%	0.0
Witch Doctor	Support Offlane	2	2.94%	4.97	75.78	2	0.00%	0.3	0	0.00%	0.0
Leshrac	Support Safelane	1	1.47%	4.35	42.86	1	0.00%	0.2	0	0.00%	0.0
Luna	Core Safelane	1	1.47%	3.73	47.20	1	0.00%	0.2	0	0.00%	0.0
Viper	Core Safelane	1	1.47%	3.73	47.20	1	0.00%	0.2	0	0.00%	0.0
Warlock	Support Offlane	1	1.47%	2.48	47.83	1	0.00%	0.2	0	33.33%	0.0
Rubick	Support Safelane	2	2.94%	1.86	76.40	2	0.00%	0.3	0	100.00%	0.0
Vengeful Spirit	Support Offlane	1	1.47%	1.24	49.07	1	0.00%	0.2	0	0.00%	0.0
Underlord	Support Offlane	1	1.47%	1.24	40.37	1	0.00%	0.2	0	0.00%	0.0