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): 8 - Median hero bans (mb): 8 - Matches: 116

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

Balance rank	Winrate	Pickrate	Contest Rate
52.6	77.6	31.1	20.6

Hero	Position	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Beastmaster	Core Offlane	94	81.03%	100.00	82.29	19	68.42%	2.4	75	60.24%	9.4
Weaver	Support Offlane	63	54.31%	99.43	69.71	31	74.19%	3.9	32	51.16%	4.0
Ogre Magi	Support Safelane	27	23.28%	98.86	39.43	23	78.26%	2.9	4	50.00%	0.5
Luna	Core Safelane	43	37.07%	98.29	65.71	15	60.00%	1.9	28	67.86%	3.5
Lifestealer	Core Safelane	30	25.86%	97.71	52.57	7	85.71%	0.9	23	57.69%	2.9
Lina	Core Midlane	39	33.62%	97.14	66.86	20	65.00%	2.5	19	58.33%	2.4
Lycan	Core Offlane	50	43.10%	96.57	74.29	13	69.23%	1.6	37	54.05%	4.6
Ember Spirit	Core Midlane	35	30.17%	96.00	62.29	12	66.67%	1.5	23	60.87%	2.9
Slark	Core Safelane	34	29.31%	95.43	58.86	6	83.33%	0.8	28	57.14%	3.5
Mars	Core Offlane	65	56.03%	94.86	84.00	28	60.71%	3.5	37	47.92%	4.6
Anti-Mage	Core Safelane	16	13.79%	94.29	22.86	9	88.89%	1.1	7	37.50%	0.9
Lina	Support Offlane	30	25.86%	93.71	61.14	15	66.67%	1.9	15	58.33%	1.9
Faceless Void	Core Offlane	15	12.93%	93.14	14.86	2	100.00%	0.3	13	71.88%	1.6
Sand King	Core Midlane	29	25.00%	92.57	59.43	11	72.73%	1.4	18	52.78%	2.3
Slardar	Core Offlane	20	17.24%	92.00	46.86	9	77.78%	1.1	11	53.85%	1.4
Pangolier	Core Offlane	36	31.03%	91.43	68.00	9	55.56%	1.1	27	63.33%	3.4
Mars	Core Midlane	12	10.34%	90.86	14.29	5	100.00%	0.6	7	47.92%	0.9
Tiny	Core Midlane	38	32.76%	90.29	76.57	20	60.00%	2.5	18	48.78%	2.3
Medusa	Core Safelane	95	81.90%	89.71	97.71	21	38.10%	2.6	74	50.00%	9.3
Terrorblade	Core Safelane	36	31.03%	89.14	73.14	13	53.85%	1.6	23	60.87%	2.9
Mirana	Support Offlane	17	14.66%	88.57	49.14	13	61.54%	1.6	4	100.00%	0.5
Clinkz	Core Safelane	12	10.34%	88.00	18.86	7	71.43%	0.9	5	80.00%	0.6
Phantom Lancer	Core Safelane	34	29.31%	87.43	70.29	6	66.67%	0.8	28	53.57%	3.5
Queen of Pain	Core Midlane	38	32.76%	86.86	78.86	11	45.45%	1.4	27	62.50%	3.4
Batrider	Core Midlane	78	67.24%	86.29	94.86	15	40.00%	1.9	63	49.25%	7.9
Void Spirit	Core Midlane	60	51.72%	85.71	90.29	24	50.00%	3.0	36	45.95%	4.5
Faceless Void	Core Safelane	22	18.97%	85.14	54.29	3	33.33%	0.4	19	71.88%	2.4
Puck	Core Midlane	34	29.31%	84.57	77.14	12	58.33%	1.5	22	50.00%	2.8
Shadow Demon	Support Offlane	51	43.97%	84.00	87.43	22	50.00%	2.8	29	45.45%	3.6
Tinker	Core Midlane	33	28.45%	83.43	78.29	10	60.00%	1.3	23	47.83%	2.9
Chen	Support Offlane	6	5.17%	82.86	9.14	4	100.00%	0.5	2	33.33%	0.3
Legion Commander	Core Offlane	12	10.34%	82.29	21.71	5	60.00%	0.6	7	85.71%	0.9
Gyrocopter	Core Safelane	35	30.17%	81.71	82.86	11	54.55%	1.4	24	45.83%	3.0
Invoker	Core Midlane	90	77.59%	81.14	99.43	25	24.00%	3.1	65	50.00%	8.1
Broodmother	Core Offlane	4	3.45%	80.57	1.14	2	100.00%	0.3	2	100.00%	0.3
Weaver	Core Offlane	10	8.62%	80.00	20.00	5	80.00%	0.6	5	51.16%	0.6
Sven	Core Safelane	57	49.14%	79.43	94.29	26	34.62%	3.3	31	56.25%	3.9
Night Stalker	Core Offlane	37	31.90%	78.86	84.57	12	41.67%	1.5	25	54.05%	3.1
Monkey King	Core Safelane	44	37.93%	78.29	88.00	16	50.00%	2.0	28	40.35%	3.5
Sand King	Core Offlane	26	22.41%	77.71	76.00	10	50.00%	1.3	16	52.78%	2.0
Tidehunter	Core Offlane	61	52.59%	77.14	98.29	28	42.86%	3.5	33	36.11%	4.1
Night Stalker	Support Safelane	12	10.34%	76.57	38.86	4	75.00%	0.5	8	54.05%	1.0
Monkey King	Support Offlane	41	35.34%	76.00	89.14	15	46.67%	1.9	26	40.35%	3.3
Techies	Support Offlane	7	6.03%	75.43	12.00	2	100.00%	0.3	5	62.50%	0.6
Skywrath Mage	Support Offlane	10	8.62%	74.86	41.71	9	66.67%	1.1	1	0.00%	0.1
Elder Titan	Support Safelane	24	20.69%	74.29	81.14	16	56.25%	2.0	8	20.00%	1.0
Abaddon	Support Offlane	4	3.45%	73.71	6.29	3	100.00%	0.4	1	33.33%	0.1
Templar Assassin	Core Midlane	22	18.97%	73.14	70.86	7	71.43%	0.9	15	33.33%	1.9
Bane	Support Safelane	41	35.34%	72.57	91.43	29	44.83%	3.6	12	26.67%	1.5
Silencer	Support Safelane	24	20.69%	72.00	81.71	13	46.15%	1.6	11	53.33%	1.4
Tiny	Core Safelane	30	25.86%	71.43	85.71	16	43.75%	2.0	14	48.78%	1.8
Storm Spirit	Core Midlane	57	49.14%	70.86	98.86	13	38.46%	1.6	44	38.64%	5.5
Tiny	Support Offlane	11	9.48%	70.29	44.00	6	66.67%	0.8	5	48.78%	0.6
Underlord	Core Offlane	16	13.79%	69.71	61.71	8	62.50%	1.0	8	37.50%	1.0
Ogre Magi	Support Offlane	10	8.62%	69.14	44.57	8	62.50%	1.0	2	50.00%	0.3
Troll Warlord	Core Safelane	10	8.62%	68.57	32.00	4	75.00%	0.5	6	50.00%	0.8
Nature's Prophet	Core Midlane	3	2.59%	68.00	3.43	2	100.00%	0.3	1	100.00%	0.1
Spectre	Core Safelane	16	13.79%	67.43	64.57	8	50.00%	1.0	8	55.56%	1.0
Snapfire	Support Offlane	9	7.76%	66.86	47.43	8	62.50%	1.0	1	0.00%	0.1
Dawnbreaker	Core Offlane	19	16.38%	66.29	73.71	7	28.57%	0.9	12	70.00%	1.5
Dawnbreaker	Support Safelane	16	13.79%	65.71	66.29	6	33.33%	0.8	10	70.00%	1.3
Razor	Core Midlane	16	13.79%	65.14	69.14	6	50.00%	0.8	10	47.37%	1.3
Dark Willow	Support Offlane	21	18.10%	64.57	83.43	14	42.86%	1.8	7	42.86%	0.9
Silencer	Support Offlane	9	7.76%	64.00	42.86	5	60.00%	0.6	4	53.33%	0.5
Venomancer	Core Offlane	23	19.83%	63.43	85.14	10	40.00%	1.3	13	43.75%	1.6
Kunkka	Core Midlane	9	7.76%	62.86	45.14	5	60.00%	0.6	4	50.00%	0.5
Ancient Apparition	Support Safelane	11	9.48%	62.29	55.43	6	66.67%	0.8	5	20.00%	0.6
Bloodseeker	Core Safelane	32	27.59%	61.71	92.57	11	27.27%	1.4	21	46.51%	2.6
Bloodseeker	Core Offlane	32	27.59%	61.14	93.14	11	27.27%	1.4	21	46.51%	2.6
Phantom Assassin	Core Safelane	8	6.90%	60.57	43.43	6	66.67%	0.8	2	0.00%	0.3
Oracle	Support Offlane	2	1.72%	60.00	4.57	2	100.00%	0.3	0	0.00%	0.0
Snapfire	Support Safelane	2	1.72%	59.43	5.14	2	100.00%	0.3	0	0.00%	0.0
Juggernaut	Core Safelane	9	7.76%	58.86	51.43	6	50.00%	0.8	3	66.67%	0.4
Morphling	Core Safelane	35	30.17%	58.29	97.14	10	20.00%	1.3	25	44.44%	3.1
Necrophos	Core Midlane	3	2.59%	57.71	5.71	1	100.00%	0.1	2	83.33%	0.3
Ursa	Core Safelane	13	11.21%	57.14	64.00	4	75.00%	0.5	9	22.22%	1.1
Earth Spirit	Support Offlane	9	7.76%	56.57	56.57	7	57.14%	0.9	2	0.00%	0.3
Enchantress	Support Safelane	6	5.17%	56.00	22.29	4	75.00%	0.5	2	0.00%	0.3
Viper	Core Midlane	11	9.48%	55.43	54.86	2	50.00%	0.3	9	50.00%	1.1
Tiny	Core Offlane	6	5.17%	54.86	20.57	3	66.67%	0.4	3	48.78%	0.4
Lich	Support Safelane	5	4.31%	54.29	21.14	5	60.00%	0.6	0	0.00%	0.0
Disruptor	Support Offlane	6	5.17%	53.71	37.14	5	60.00%	0.6	1	25.00%	0.1
Centaur Warrunner	Core Offlane	3	2.59%	53.14	8.57	2	100.00%	0.3	1	0.00%	0.1
Disruptor	Support Safelane	25	21.55%	52.57	96.57	22	31.82%	2.8	3	25.00%	0.4
Pugna	Core Midlane	5	4.31%	52.00	16.57	3	66.67%	0.4	2	50.00%	0.3
Dark Seer	Core Offlane	2	1.72%	51.43	2.86	1	100.00%	0.1	1	100.00%	0.1
Lifestealer	Core Offlane	4	3.45%	50.86	11.43	1	100.00%	0.1	3	57.69%	0.4
Treant Protector	Support Safelane	21	18.10%	50.29	90.86	12	33.33%	1.5	9	33.33%	1.1
Abaddon	Support Safelane	8	6.90%	49.71	56.00	6	50.00%	0.8	2	33.33%	0.3
Queen of Pain	Core Offlane	3	2.59%	49.14	8.00	1	100.00%	0.1	2	62.50%	0.3
Windranger	Support Offlane	6	5.17%	48.57	49.71	6	50.00%	0.8	0	0.00%	0.0
Omniknight	Support Safelane	5	4.31%	48.00	30.29	4	50.00%	0.5	1	100.00%	0.1
Weaver	Core Safelane	12	10.34%	47.43	74.86	6	33.33%	0.8	6	51.16%	0.8
Leshrac	Core Midlane	10	8.62%	46.86	62.86	4	25.00%	0.5	6	66.67%	0.8
Earthshaker	Support Offlane	9	7.76%	46.29	68.57	8	37.50%	1.0	1	100.00%	0.1
Lion	Support Offlane	17	14.66%	45.71	89.71	13	30.77%	1.6	4	40.00%	0.5
Night Stalker	Support Offlane	6	5.17%	45.14	35.43	2	50.00%	0.3	4	54.05%	0.5
Bane	Support Offlane	11	9.48%	44.57	80.57	8	37.50%	1.0	3	26.67%	0.4
Razor	Core Safelane	3	2.59%	44.00	10.29	1	100.00%	0.1	2	47.37%	0.3
Chaos Knight	Support Offlane	4	3.45%	43.43	17.71	3	66.67%	0.4	1	0.00%	0.1
Hoodwink	Support Offlane	4	3.45%	43.43	17.71	3	66.67%	0.4	1	0.00%	0.1
Axe	Core Offlane	10	8.62%	42.29	72.57	6	50.00%	0.8	4	0.00%	0.5
Shadow Fiend	Core Midlane	15	12.93%	41.71	86.86	7	28.57%	0.9	8	37.50%	1.0
Beastmaster	Core Midlane	10	8.62%	41.14	63.43	2	0.00%	0.3	8	60.24%	1.0
Mars	Core Safelane	2	1.72%	40.57	6.86	1	100.00%	0.1	1	47.92%	0.1
Razor	Core Offlane	11	9.48%	40.00	75.43	4	25.00%	0.5	7	47.37%	0.9
Elder Titan	Support Offlane	6	5.17%	39.43	52.00	4	50.00%	0.5	2	20.00%	0.3
Venomancer	Core Safelane	2	1.72%	38.86	7.43	1	100.00%	0.1	1	43.75%	0.1
Shadow Shaman	Support Offlane	4	3.45%	38.29	33.14	4	50.00%	0.5	0	0.00%	0.0
Rubick	Support Offlane	17	14.66%	37.71	96.00	14	28.57%	1.8	3	0.00%	0.4
Io	Support Safelane	11	9.48%	37.14	79.43	4	50.00%	0.5	7	15.79%	0.9
Sniper	Core Safelane	19	16.38%	36.57	95.43	8	25.00%	1.0	11	27.27%	1.4
Mars	Support Safelane	5	4.31%	36.00	33.71	2	50.00%	0.3	3	47.92%	0.4
Nyx Assassin	Support Offlane	3	2.59%	35.43	12.57	2	50.00%	0.3	1	100.00%	0.1
Earth Spirit	Core Midlane	1	0.86%	34.86	1.71	1	100.00%	0.1	0	0.00%	0.0
Lich	Support Offlane	1	0.86%	34.29	2.29	1	100.00%	0.1	0	0.00%	0.0
Dazzle	Core Offlane	1	0.86%	33.71	4.00	1	100.00%	0.1	0	0.00%	0.0
Nyx Assassin	Support Safelane	1	0.86%	33.14	0.57	1	100.00%	0.1	0	100.00%	0.0
Dawnbreaker	Support Offlane	11	9.48%	32.57	80.00	4	0.00%	0.5	7	70.00%	0.9
Timbersaw	Core Offlane	7	6.03%	32.00	57.14	3	33.33%	0.4	4	50.00%	0.5
Shadow Demon	Support Safelane	7	6.03%	31.43	58.29	3	33.33%	0.4	4	45.45%	0.5
Io	Support Offlane	16	13.79%	30.86	92.00	6	33.33%	0.8	10	15.79%	1.3
Necrophos	Core Offlane	6	5.17%	30.29	50.29	2	0.00%	0.3	4	83.33%	0.5
Vengeful Spirit	Core Safelane	2	1.72%	29.71	9.71	1	100.00%	0.1	1	14.29%	0.1
Phoenix	Support Offlane	5	4.31%	29.14	42.29	2	0.00%	0.3	3	100.00%	0.4
Earthshaker	Core Offlane	6	5.17%	28.57	67.43	6	33.33%	0.8	0	100.00%	0.0
Magnus	Core Offlane	4	3.45%	28.00	40.00	3	33.33%	0.4	1	100.00%	0.1
Tidehunter	Core Safelane	4	3.45%	27.43	31.43	2	50.00%	0.3	2	36.11%	0.3
Warlock	Support Safelane	2	1.72%	26.86	10.86	1	100.00%	0.1	1	0.00%	0.1
Alchemist	Core Safelane	6	5.17%	26.29	53.71	2	50.00%	0.3	4	25.00%	0.5
Lion	Support Safelane	3	2.59%	25.71	18.29	2	50.00%	0.3	1	40.00%	0.1
Chen	Support Safelane	3	2.59%	25.14	19.43	2	50.00%	0.3	1	33.33%	0.1
Viper	Core Offlane	6	5.17%	24.57	53.14	1	0.00%	0.1	5	50.00%	0.6
Nature's Prophet	Core Offlane	5	4.31%	24.00	57.71	4	25.00%	0.5	1	100.00%	0.1
Zeus	Core Midlane	3	2.59%	23.43	15.43	1	0.00%	0.1	2	100.00%	0.3
Death Prophet	Core Offlane	3	2.59%	22.86	16.00	1	0.00%	0.1	2	100.00%	0.3
Doom	Core Offlane	2	1.72%	22.29	13.71	2	50.00%	0.3	0	0.00%	0.0
Spirit Breaker	Core Offlane	2	1.72%	22.29	13.71	2	50.00%	0.3	0	0.00%	0.0
Undying	Support Safelane	3	2.59%	21.14	30.86	2	50.00%	0.3	1	0.00%	0.1
Pangolier	Core Midlane	4	3.45%	20.57	37.71	1	0.00%	0.1	3	63.33%	0.4
Techies	Core Offlane	4	3.45%	20.00	38.29	1	0.00%	0.1	3	62.50%	0.4
Batrider	Core Offlane	5	4.31%	19.43	50.86	1	0.00%	0.1	4	49.25%	0.5
Witch Doctor	Support Safelane	3	2.59%	18.86	45.71	3	33.33%	0.4	0	0.00%	0.0
Undying	Support Offlane	5	4.31%	18.29	65.14	3	33.33%	0.4	2	0.00%	0.3
Vengeful Spirit	Core Offlane	10	8.62%	17.71	93.71	6	16.67%	0.8	4	14.29%	0.5
Dawnbreaker	Core Midlane	3	2.59%	17.14	29.71	1	0.00%	0.1	2	70.00%	0.3
Invoker	Core Offlane	4	3.45%	16.57	48.00	1	0.00%	0.1	3	50.00%	0.4
Jakiro	Support Safelane	5	4.31%	16.00	71.43	4	25.00%	0.5	1	0.00%	0.1
Windranger	Core Midlane	5	4.31%	15.43	77.71	5	20.00%	0.6	0	0.00%	0.0
Queen of Pain	Support Offlane	3	2.59%	14.86	34.86	1	0.00%	0.1	2	62.50%	0.3
Sand King	Core Safelane	3	2.59%	14.29	40.57	1	0.00%	0.1	2	52.78%	0.3
Morphling	Core Midlane	3	2.59%	13.71	46.29	1	0.00%	0.1	2	44.44%	0.3
Monkey King	Support Safelane	3	2.59%	13.14	48.57	1	0.00%	0.1	2	40.35%	0.3
Brewmaster	Core Offlane	8	6.90%	12.57	88.57	2	0.00%	0.3	6	16.67%	0.8
Lina	Core Offlane	2	1.72%	12.00	32.57	1	0.00%	0.1	1	58.33%	0.1
Sven	Support Offlane	2	1.72%	11.43	34.29	1	0.00%	0.1	1	56.25%	0.1
Slardar	Support Offlane	2	1.72%	10.86	36.00	1	0.00%	0.1	1	53.85%	0.1
Slardar	Core Safelane	2	1.72%	10.29	36.57	1	0.00%	0.1	1	53.85%	0.1
Tidehunter	Support Offlane	2	1.72%	9.71	41.14	1	0.00%	0.1	1	36.11%	0.1
Vengeful Spirit	Support Safelane	5	4.31%	9.14	86.29	3	0.00%	0.4	2	14.29%	0.3
Huskar	Core Midlane	1	0.86%	8.57	28.00	1	0.00%	0.1	0	0.00%	0.0
Hoodwink	Core Offlane	1	0.86%	8.00	25.71	1	0.00%	0.1	0	0.00%	0.0
Mirana	Core Offlane	1	0.86%	7.43	25.14	1	0.00%	0.1	0	100.00%	0.0
Spirit Breaker	Core Midlane	1	0.86%	6.86	24.00	1	0.00%	0.1	0	0.00%	0.0
Crystal Maiden	Support Safelane	1	0.86%	6.29	29.14	1	0.00%	0.1	0	0.00%	0.0
Clockwerk	Support Offlane	8	6.90%	5.71	100.00	8	0.00%	1.0	0	0.00%	0.0
Keeper of the Light	Support Offlane	1	0.86%	5.14	28.57	1	0.00%	0.1	0	0.00%	0.0
Omniknight	Support Offlane	1	0.86%	4.57	24.57	1	0.00%	0.1	0	100.00%	0.0
Nature's Prophet	Support Safelane	1	0.86%	4.00	27.43	1	0.00%	0.1	0	100.00%	0.0
Tusk	Support Offlane	1	0.86%	3.43	26.29	1	0.00%	0.1	0	0.00%	0.0
Magnus	Core Midlane	1	0.86%	2.86	26.86	1	0.00%	0.1	0	100.00%	0.0
Jakiro	Core Offlane	2	1.72%	2.29	60.57	2	0.00%	0.3	0	0.00%	0.0
Hoodwink	Support Safelane	2	1.72%	1.71	60.00	2	0.00%	0.3	0	0.00%	0.0
Enchantress	Support Offlane	3	2.59%	1.14	72.00	2	0.00%	0.3	1	0.00%	0.1
Earth Spirit	Support Safelane	1	0.86%	0.57	24.00	1	0.00%	0.1	0	0.00%	0.0