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): 5 - Median hero bans (mb): 8 - Matches: 81

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

Balance rank	Winrate	Pickrate	Contest Rate
42.1	48.0	41.0	26.8

Hero	Position	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Templar Assassin	Core Midlane	52	64.20%	100.00	72.57	15	66.67%	3.0	37	59.46%	4.6
Puck	Core Midlane	55	67.90%	99.43	77.71	20	70.00%	4.0	35	52.38%	4.4
Timbersaw	Core Offlane	56	69.14%	98.86	83.43	12	58.33%	2.4	44	58.33%	5.5
Viper	Core Offlane	34	41.98%	98.29	63.43	9	77.78%	1.8	25	56.41%	3.1
Clockwerk	Support Offlane	23	28.40%	97.71	50.29	11	81.82%	2.2	12	50.00%	1.5
Earth Spirit	Support Offlane	28	34.57%	97.14	60.57	16	68.75%	3.2	12	60.00%	1.5
Invoker	Core Midlane	42	51.85%	96.57	73.71	17	58.82%	3.4	25	62.07%	3.1
Medusa	Core Safelane	16	19.75%	96.00	27.43	4	100.00%	0.8	12	58.33%	1.5
Phantom Lancer	Core Safelane	48	59.26%	95.43	82.86	7	57.14%	1.4	41	56.10%	5.1
Ancient Apparition	Support Safelane	44	54.32%	94.86	84.57	17	35.29%	3.4	27	78.13%	3.4
Pugna	Core Midlane	6	7.41%	94.29	1.71	1	100.00%	0.2	5	100.00%	0.6
Luna	Core Safelane	31	38.27%	93.71	72.00	14	64.29%	2.8	17	47.06%	2.1
Spectre	Core Safelane	34	41.98%	93.14	78.86	13	53.85%	2.6	21	57.14%	2.6
Dark Seer	Core Offlane	31	38.27%	92.57	75.43	17	58.82%	3.4	14	50.00%	1.8
Nyx Assassin	Support Offlane	56	69.14%	92.00	96.57	21	47.62%	4.2	35	48.65%	4.4
Grimstroke	Support Safelane	19	23.46%	91.43	58.86	11	63.64%	2.2	8	60.00%	1.0
Mars	Core Offlane	40	49.38%	90.86	90.86	21	57.14%	4.2	19	40.00%	2.4
Ember Spirit	Core Midlane	38	46.91%	90.29	92.00	16	43.75%	3.2	22	59.09%	2.8
Lina	Core Midlane	12	14.81%	89.71	40.00	8	75.00%	1.6	4	37.50%	0.5
Arc Warden	Core Safelane	14	17.28%	89.14	41.71	4	50.00%	0.8	10	80.00%	1.3
Abaddon	Support Safelane	29	35.80%	88.57	84.00	17	58.82%	3.4	12	26.67%	1.5
Mirana	Support Offlane	24	29.63%	88.00	78.29	18	55.56%	3.6	6	33.33%	0.8
Beastmaster	Core Offlane	7	8.64%	87.43	18.29	3	100.00%	0.6	4	50.00%	0.5
Lion	Support Safelane	28	34.57%	86.86	85.14	21	47.62%	4.2	7	61.54%	0.9
Void Spirit	Core Midlane	21	25.93%	86.29	68.00	4	25.00%	0.8	17	70.59%	2.1
Oracle	Support Safelane	18	22.22%	85.71	62.29	7	57.14%	1.4	11	58.33%	1.4
Terrorblade	Core Safelane	41	50.62%	85.14	95.43	18	50.00%	3.6	23	38.46%	2.9
Riki	Core Safelane	11	13.58%	84.57	30.86	4	75.00%	0.8	7	60.00%	0.9
Phoenix	Support Safelane	14	17.28%	84.00	55.43	8	62.50%	1.6	6	54.55%	0.8
Winter Wyvern	Support Safelane	27	33.33%	83.43	85.71	15	46.67%	3.0	12	52.63%	1.5
Viper	Core Safelane	8	9.88%	82.86	21.14	2	100.00%	0.4	6	56.41%	0.8
Doom	Core Offlane	27	33.33%	82.29	86.29	10	20.00%	2.0	17	79.31%	2.1
Juggernaut	Core Safelane	27	33.33%	81.71	86.86	7	42.86%	1.4	20	50.00%	2.5
Mars	Core Midlane	11	13.58%	81.14	52.57	6	66.67%	1.2	5	40.00%	0.6
Drow Ranger	Core Safelane	16	19.75%	80.57	69.71	7	57.14%	1.4	9	44.44%	1.1
Tidehunter	Core Offlane	40	49.38%	80.00	98.86	11	27.27%	2.2	29	48.28%	3.6
Ursa	Core Safelane	34	41.98%	79.43	96.00	9	44.44%	1.8	25	39.29%	3.1
Lion	Support Offlane	26	32.10%	78.86	93.71	20	40.00%	4.0	6	61.54%	0.8
Skywrath Mage	Support Offlane	9	11.11%	78.29	50.86	8	62.50%	1.6	1	0.00%	0.1
Earth Spirit	Core Midlane	4	4.94%	77.71	12.00	2	100.00%	0.4	2	60.00%	0.3
Earth Spirit	Support Safelane	4	4.94%	77.14	11.43	2	100.00%	0.4	2	60.00%	0.3
Tiny	Core Midlane	12	14.81%	76.57	59.43	6	50.00%	1.2	6	63.64%	0.8
Tiny	Support Offlane	12	14.81%	76.00	60.00	6	50.00%	1.2	6	63.64%	0.8
Broodmother	Core Offlane	40	49.38%	75.43	99.43	5	80.00%	1.0	35	25.71%	4.4
Bristleback	Core Safelane	8	9.88%	74.86	28.00	3	66.67%	0.6	5	62.50%	0.6
Storm Spirit	Core Midlane	17	20.99%	74.29	70.29	3	66.67%	0.6	14	42.86%	1.8
Huskar	Core Midlane	3	3.70%	73.71	4.00	1	100.00%	0.2	2	100.00%	0.3
Undying	Support Offlane	3	3.70%	73.14	4.57	1	100.00%	0.2	2	100.00%	0.3
Chaos Knight	Core Safelane	13	16.05%	72.57	61.71	4	50.00%	0.8	9	55.56%	1.1
Lina	Support Offlane	11	13.58%	72.00	61.14	7	57.14%	1.4	4	37.50%	0.5
Grimstroke	Support Offlane	17	20.99%	71.43	80.57	10	40.00%	2.0	7	60.00%	0.9
Lich	Support Safelane	3	3.70%	70.86	9.14	2	100.00%	0.4	1	50.00%	0.1
Dragon Knight	Core Offlane	20	24.69%	70.29	87.43	8	37.50%	1.6	12	50.00%	1.5
Dragon Knight	Core Midlane	20	24.69%	69.71	88.00	8	37.50%	1.6	12	50.00%	1.5
Abaddon	Support Offlane	7	8.64%	69.14	30.29	4	75.00%	0.8	3	26.67%	0.4
Puck	Core Offlane	8	9.88%	68.57	37.71	3	66.67%	0.6	5	52.38%	0.6
Doom	Core Midlane	16	19.75%	68.00	74.86	6	16.67%	1.2	10	79.31%	1.3
Venomancer	Core Offlane	2	2.47%	67.43	6.29	2	100.00%	0.4	0	0.00%	0.0
Tusk	Support Offlane	11	13.58%	66.86	62.86	7	42.86%	1.4	4	75.00%	0.5
Phantom Assassin	Core Safelane	5	6.17%	66.29	24.00	4	75.00%	0.8	1	0.00%	0.1
Visage	Core Midlane	5	6.17%	65.71	20.57	2	100.00%	0.4	3	33.33%	0.4
Morphling	Core Safelane	30	37.04%	65.14	98.29	4	50.00%	0.8	26	30.77%	3.3
Sand King	Core Offlane	14	17.28%	64.57	76.57	8	50.00%	1.6	6	28.57%	0.8
Hoodwink	Support Offlane	17	20.99%	64.00	90.29	12	41.67%	2.4	5	33.33%	0.6
Windranger	Core Offlane	3	3.70%	63.43	8.00	1	100.00%	0.2	2	80.00%	0.3
Doom	Core Safelane	3	3.70%	62.86	8.57	1	100.00%	0.2	2	79.31%	0.3
Axe	Core Offlane	20	24.69%	62.29	94.29	11	45.45%	2.2	9	18.18%	1.1
Ancient Apparition	Support Offlane	8	9.88%	61.71	48.57	3	33.33%	0.6	5	78.13%	0.6
Leshrac	Core Midlane	19	23.46%	61.14	93.14	7	28.57%	1.4	12	47.37%	1.5
Viper	Core Midlane	8	9.88%	60.57	44.57	2	50.00%	0.4	6	56.41%	0.8
Naga Siren	Core Midlane	2	2.47%	60.00	2.29	1	100.00%	0.2	1	100.00%	0.1
Wraith King	Core Safelane	17	20.99%	59.43	88.57	4	50.00%	0.8	13	30.77%	1.6
Windranger	Core Midlane	5	6.17%	58.86	24.57	2	50.00%	0.4	3	80.00%	0.4
Enchantress	Support Offlane	12	14.81%	58.29	79.43	8	50.00%	1.6	4	0.00%	0.5
Phoenix	Support Offlane	7	8.64%	57.71	51.43	4	50.00%	0.8	3	54.55%	0.4
Lifestealer	Core Safelane	21	25.93%	57.14	97.14	10	20.00%	2.0	11	54.55%	1.4
Bristleback	Core Offlane	3	3.70%	56.57	12.57	1	100.00%	0.2	2	62.50%	0.3
Kunkka	Core Midlane	5	6.17%	56.00	25.14	2	50.00%	0.4	3	75.00%	0.4
Oracle	Support Offlane	3	3.70%	55.43	13.14	1	100.00%	0.2	2	58.33%	0.3
Rubick	Support Offlane	11	13.58%	54.86	73.14	6	50.00%	1.2	5	16.67%	0.6
Lycan	Core Safelane	6	7.41%	54.29	26.86	1	100.00%	0.2	5	40.00%	0.6
Tusk	Support Safelane	2	2.47%	53.71	7.43	1	100.00%	0.2	1	75.00%	0.1
Sven	Core Safelane	3	3.70%	53.14	19.43	3	66.67%	0.6	0	0.00%	0.0
Elder Titan	Support Offlane	3	3.70%	52.57	20.00	3	66.67%	0.6	0	0.00%	0.0
Winter Wyvern	Support Offlane	11	13.58%	52.00	76.00	6	33.33%	1.2	5	52.63%	0.6
Faceless Void	Core Safelane	15	18.52%	51.43	91.43	5	40.00%	1.0	10	30.00%	1.3
Monkey King	Core Midlane	4	4.94%	50.86	18.86	1	100.00%	0.2	3	45.45%	0.4
Puck	Support Offlane	3	3.70%	50.29	13.71	1	100.00%	0.2	2	52.38%	0.3
Monkey King	Core Safelane	8	9.88%	49.71	54.86	2	50.00%	0.4	6	45.45%	0.8
Gyrocopter	Core Safelane	8	9.88%	49.14	66.86	6	50.00%	1.2	2	0.00%	0.3
Troll Warlord	Core Safelane	3	3.70%	48.57	14.29	1	100.00%	0.2	2	50.00%	0.3
Nyx Assassin	Support Safelane	3	3.70%	48.00	14.86	1	100.00%	0.2	2	48.65%	0.3
Slardar	Core Offlane	7	8.64%	47.43	58.29	4	50.00%	0.8	3	33.33%	0.4
Pangolier	Core Midlane	5	6.17%	46.86	42.86	4	50.00%	0.8	1	50.00%	0.1
Riki	Core Midlane	5	6.17%	46.29	29.14	2	50.00%	0.4	3	60.00%	0.4
Snapfire	Support Offlane	6	7.41%	45.71	53.14	4	50.00%	0.8	2	33.33%	0.3
Legion Commander	Core Offlane	11	13.58%	45.14	77.14	3	33.33%	0.6	8	37.50%	1.0
Anti-Mage	Core Offlane	2	2.47%	44.57	9.71	1	100.00%	0.2	1	42.86%	0.1
Earthshaker	Support Offlane	4	4.94%	44.00	38.29	4	50.00%	0.8	0	0.00%	0.0
Leshrac	Core Offlane	8	9.88%	43.43	66.29	3	33.33%	0.6	5	47.37%	0.6
Dragon Knight	Core Safelane	5	6.17%	42.86	37.14	2	50.00%	0.4	3	50.00%	0.4
Terrorblade	Core Offlane	2	2.47%	42.29	10.29	1	100.00%	0.2	1	38.46%	0.1
Terrorblade	Support Offlane	2	2.47%	41.71	10.86	1	100.00%	0.2	1	38.46%	0.1
Batrider	Core Offlane	4	4.94%	41.14	23.43	1	100.00%	0.2	3	30.77%	0.4
Batrider	Core Midlane	13	16.05%	40.57	89.71	3	33.33%	0.6	10	30.77%	1.3
Brewmaster	Core Midlane	1	1.23%	40.00	5.14	1	100.00%	0.2	0	100.00%	0.0
Dark Willow	Support Safelane	1	1.23%	39.43	1.14	1	100.00%	0.2	0	33.33%	0.0
Elder Titan	Core Offlane	1	1.23%	38.86	6.86	1	100.00%	0.2	0	0.00%	0.0
Alchemist	Core Offlane	1	1.23%	38.86	0.57	1	100.00%	0.2	0	0.00%	0.0
Venomancer	Core Safelane	1	1.23%	37.71	5.71	1	100.00%	0.2	0	0.00%	0.0
Lone Druid	Core Offlane	1	1.23%	37.14	3.43	1	100.00%	0.2	0	0.00%	0.0
Gyrocopter	Core Midlane	1	1.23%	36.57	2.86	1	100.00%	0.2	0	0.00%	0.0
Dark Willow	Support Offlane	9	11.11%	36.00	80.00	6	33.33%	1.2	3	33.33%	0.4
Anti-Mage	Core Safelane	10	12.35%	35.43	81.14	4	25.00%	0.8	6	42.86%	0.8
Clockwerk	Support Safelane	4	4.94%	34.86	28.57	2	50.00%	0.4	2	50.00%	0.3
Razor	Core Safelane	9	11.11%	34.29	71.43	2	0.00%	0.4	7	53.85%	0.9
Razor	Core Midlane	9	11.11%	33.71	70.86	2	0.00%	0.4	7	53.85%	0.9
Magnus	Core Offlane	10	12.35%	33.14	89.14	5	20.00%	1.0	5	44.44%	0.6
Magnus	Core Midlane	8	9.88%	32.57	74.29	4	25.00%	0.8	4	44.44%	0.5
Keeper of the Light	Support Safelane	2	2.47%	32.00	15.43	1	100.00%	0.2	1	0.00%	0.1
Keeper of the Light	Core Offlane	2	2.47%	31.43	17.71	1	100.00%	0.2	1	0.00%	0.1
Chen	Core Offlane	2	2.47%	31.43	17.71	1	100.00%	0.2	1	0.00%	0.1
Night Stalker	Core Offlane	2	2.47%	31.43	17.71	1	100.00%	0.2	1	0.00%	0.1
Techies	Core Offlane	2	2.47%	31.43	17.71	1	100.00%	0.2	1	0.00%	0.1
Hoodwink	Core Offlane	3	3.70%	29.14	26.29	2	50.00%	0.4	1	33.33%	0.1
Timbersaw	Core Midlane	5	6.17%	28.57	49.14	1	0.00%	0.2	4	58.33%	0.5
Disruptor	Support Safelane	2	2.47%	28.00	22.86	2	50.00%	0.4	0	0.00%	0.0
Brewmaster	Support Offlane	2	2.47%	27.43	22.29	2	50.00%	0.4	0	100.00%	0.0
Crystal Maiden	Support Safelane	2	2.47%	26.86	21.71	2	50.00%	0.4	0	0.00%	0.0
Nature's Prophet	Core Offlane	4	4.94%	26.29	38.86	1	0.00%	0.2	3	66.67%	0.4
Centaur Warrunner	Core Offlane	9	11.11%	25.71	92.57	4	25.00%	0.8	5	20.00%	0.6
Enchantress	Support Safelane	3	3.70%	25.14	36.00	2	50.00%	0.4	1	0.00%	0.1
Axe	Core Safelane	5	6.17%	24.57	65.71	3	33.33%	0.6	2	18.18%	0.3
Slark	Core Safelane	13	16.05%	24.00	100.00	5	20.00%	1.0	8	12.50%	1.0
Viper	Support Safelane	4	4.94%	23.43	46.86	1	0.00%	0.2	3	56.41%	0.4
Invoker	Support Offlane	5	6.17%	22.86	65.14	2	0.00%	0.4	3	62.07%	0.4
Monkey King	Core Offlane	4	4.94%	22.29	53.71	1	0.00%	0.2	3	45.45%	0.4
Bristleback	Core Midlane	3	3.70%	21.71	39.43	1	0.00%	0.2	2	62.50%	0.3
Ursa	Core Midlane	4	4.94%	21.14	57.71	1	0.00%	0.2	3	39.29%	0.4
Naga Siren	Core Safelane	2	2.47%	20.57	25.71	1	0.00%	0.2	1	100.00%	0.1
Death Prophet	Core Midlane	6	7.41%	20.00	81.71	2	0.00%	0.4	4	33.33%	0.5
Necrophos	Core Midlane	3	3.70%	19.43	46.29	1	0.00%	0.2	2	50.00%	0.3
Leshrac	Core Safelane	3	3.70%	18.86	47.43	1	0.00%	0.2	2	47.37%	0.3
Phoenix	Core Offlane	4	4.94%	18.29	67.43	2	0.00%	0.4	2	54.55%	0.3
Winter Wyvern	Core Midlane	4	4.94%	17.71	68.57	2	0.00%	0.4	2	52.63%	0.3
Shadow Demon	Support Offlane	4	4.94%	17.14	69.14	2	0.00%	0.4	2	50.00%	0.3
Kunkka	Core Offlane	2	2.47%	16.57	29.71	1	0.00%	0.2	1	75.00%	0.1
Invoker	Core Offlane	2	2.47%	16.00	36.57	1	0.00%	0.2	1	62.07%	0.1
Death Prophet	Core Offlane	3	3.70%	15.43	54.29	1	0.00%	0.2	2	33.33%	0.3
Shadow Demon	Core Midlane	2	2.47%	14.86	41.14	1	0.00%	0.2	1	50.00%	0.1
Shadow Demon	Support Safelane	2	2.47%	14.29	40.57	1	0.00%	0.2	1	50.00%	0.1
Magnus	Core Safelane	2	2.47%	13.71	42.29	1	0.00%	0.2	1	44.44%	0.1
Mars	Support Offlane	2	2.47%	13.14	43.43	1	0.00%	0.2	1	40.00%	0.1
Lina	Core Offlane	2	2.47%	12.57	44.00	1	0.00%	0.2	1	37.50%	0.1
Lich	Support Offlane	4	4.94%	12.00	82.29	3	0.00%	0.6	1	50.00%	0.1
Snapfire	Core Offlane	2	2.47%	11.43	45.71	1	0.00%	0.2	1	33.33%	0.1
Snapfire	Support Safelane	2	2.47%	10.86	45.14	1	0.00%	0.2	1	33.33%	0.1
Sand King	Core Safelane	2	2.47%	10.29	48.00	1	0.00%	0.2	1	28.57%	0.1
Abaddon	Core Safelane	2	2.47%	9.71	49.71	1	0.00%	0.2	1	26.67%	0.1
Rubick	Core Midlane	2	2.47%	9.14	52.00	1	0.00%	0.2	1	16.67%	0.1
Mirana	Core Offlane	1	1.23%	8.57	35.43	1	0.00%	0.2	0	33.33%	0.0
Pangolier	Core Offlane	1	1.23%	8.00	34.86	1	0.00%	0.2	0	50.00%	0.0
Jakiro	Support Safelane	1	1.23%	7.43	34.29	1	0.00%	0.2	0	0.00%	0.0
Spirit Breaker	Support Safelane	1	1.23%	7.43	34.29	1	0.00%	0.2	0	0.00%	0.0
Shadow Fiend	Core Midlane	2	2.47%	6.29	57.14	1	0.00%	0.2	1	0.00%	0.1
Pangolier	Support Offlane	1	1.23%	5.71	33.14	1	0.00%	0.2	0	50.00%	0.0
Jakiro	Support Offlane	1	1.23%	5.14	32.57	1	0.00%	0.2	0	0.00%	0.0
Treant Protector	Support Offlane	1	1.23%	5.14	32.57	1	0.00%	0.2	0	0.00%	0.0
Treant Protector	Support Safelane	2	2.47%	4.00	64.57	2	0.00%	0.4	0	0.00%	0.0
Techies	Support Offlane	2	2.47%	3.43	56.57	1	0.00%	0.2	1	0.00%	0.1
Brewmaster	Core Offlane	2	2.47%	2.86	64.00	2	0.00%	0.4	0	100.00%	0.0
Night Stalker	Core Midlane	2	2.47%	2.29	56.00	1	0.00%	0.2	1	0.00%	0.1
Zeus	Core Midlane	6	7.41%	1.71	97.71	2	0.00%	0.4	4	0.00%	0.5
Bloodseeker	Core Safelane	5	6.17%	1.14	94.86	2	0.00%	0.4	3	0.00%	0.4
Pudge	Support Offlane	1	1.23%	0.57	32.57	1	0.00%	0.2	0	0.00%	0.0