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): 6 - Matches: 55

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

Balance rank	Winrate	Pickrate	Contest Rate
59.8	81.2	41.8	32.0

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Puck	51	92.73%	100.00	82.83	29	62.07%	4.8	22	36.36%	3.7
Void Spirit	25	45.45%	98.99	54.55	7	71.43%	1.2	18	61.11%	3.0
Alchemist	23	41.82%	97.98	55.56	10	60.00%	1.7	13	69.23%	2.2
Dazzle	22	40.00%	96.97	56.57	10	60.00%	1.7	12	66.67%	2.0
Death Prophet	18	32.73%	95.96	46.46	6	83.33%	1.0	12	50.00%	2.0
Dawnbreaker	50	90.91%	94.95	91.92	21	42.86%	3.5	29	58.62%	4.8
Enigma	23	41.82%	93.94	57.58	6	66.67%	1.0	17	58.82%	2.8
Winter Wyvern	43	78.18%	92.93	85.86	21	57.14%	3.5	22	40.91%	3.7
Terrorblade	17	30.91%	91.92	50.51	9	66.67%	1.5	8	62.50%	1.3
Bloodseeker	32	58.18%	90.91	73.74	8	50.00%	1.3	24	58.33%	4.0
Tiny	53	96.36%	89.90	93.94	38	47.37%	6.3	15	46.67%	2.5
Faceless Void	32	58.18%	88.89	75.76	8	62.50%	1.3	24	50.00%	4.0
Marci	54	98.18%	87.88	95.96	14	57.14%	2.3	40	40.00%	6.7
Skywrath Mage	25	45.45%	86.87	65.66	10	50.00%	1.7	15	66.67%	2.5
Visage	35	63.64%	85.86	81.82	6	33.33%	1.0	29	58.62%	4.8
Viper	53	96.36%	84.85	97.98	10	40.00%	1.7	43	46.51%	7.2
Night Stalker	27	49.09%	83.84	69.70	12	58.33%	2.0	15	46.67%	2.5
Juggernaut	30	54.55%	82.83	79.80	11	45.45%	1.8	19	57.89%	3.2
Io	12	21.82%	81.82	40.40	6	66.67%	1.0	6	66.67%	1.0
Bristleback	45	81.82%	80.81	94.95	12	41.67%	2.0	33	45.45%	5.5
Razor	39	70.91%	79.80	90.91	9	44.44%	1.5	30	46.67%	5.0
Monkey King	22	40.00%	78.79	66.67	8	62.50%	1.3	14	42.86%	2.3
Zeus	44	80.00%	77.78	96.97	10	40.00%	1.7	34	44.12%	5.7
Templar Assassin	23	41.82%	76.77	72.73	12	66.67%	2.0	11	18.18%	1.8
Ogre Magi	7	12.73%	75.76	28.28	7	71.43%	1.2	0	0.00%	0.0
Kunkka	20	36.36%	74.75	64.65	6	66.67%	1.0	14	42.86%	2.3
Brewmaster	13	23.64%	73.74	53.54	9	55.56%	1.5	4	75.00%	0.7
Beastmaster	31	56.36%	72.73	87.88	8	50.00%	1.3	23	43.48%	3.8
Weaver	12	21.82%	71.72	41.41	2	100.00%	0.3	10	50.00%	1.7
Keeper of the Light	22	40.00%	70.71	68.69	7	85.71%	1.2	15	20.00%	2.5
Naga Siren	3	5.45%	69.70	7.07	2	100.00%	0.3	1	100.00%	0.2
Mars	10	18.18%	68.69	43.43	8	62.50%	1.3	2	50.00%	0.3
Enchantress	26	47.27%	67.68	86.87	17	41.18%	2.8	9	55.56%	1.5
Nature's Prophet	11	20.00%	66.67	51.52	8	62.50%	1.3	3	33.33%	0.5
Nyx Assassin	11	20.00%	65.66	45.45	4	75.00%	0.7	7	42.86%	1.2
Phoenix	15	27.27%	64.65	63.64	8	62.50%	1.3	7	28.57%	1.2
Batrider	22	40.00%	63.64	80.81	9	33.33%	1.5	13	61.54%	2.2
Queen of Pain	6	10.91%	62.63	26.26	4	75.00%	0.7	2	50.00%	0.3
Clockwerk	17	30.91%	61.62	74.75	11	45.45%	1.8	6	50.00%	1.0
Chaos Knight	11	20.00%	60.61	42.42	1	0.00%	0.2	10	70.00%	1.7
Bounty Hunter	4	7.27%	59.60	20.20	4	75.00%	0.7	0	0.00%	0.0
Ember Spirit	13	23.64%	58.59	60.61	5	40.00%	0.8	8	62.50%	1.3
Hoodwink	2	3.64%	57.58	17.17	2	100.00%	0.3	0	0.00%	0.0
Axe	2	3.64%	57.58	15.15	2	100.00%	0.3	0	0.00%	0.0
Broodmother	3	5.45%	55.56	8.08	0	0.00%	0.0	3	100.00%	0.5
Morphling	4	7.27%	54.55	18.18	1	100.00%	0.2	3	66.67%	0.5
Doom	6	10.91%	53.54	34.34	4	50.00%	0.7	2	100.00%	0.3
Timbersaw	31	56.36%	52.53	98.99	10	10.00%	1.7	21	52.38%	3.5
Sniper	6	10.91%	51.52	21.21	0	0.00%	0.0	6	66.67%	1.0
Warlock	18	32.73%	50.51	89.90	12	41.67%	2.0	6	16.67%	1.0
Venomancer	5	9.09%	49.49	29.29	3	66.67%	0.5	2	50.00%	0.3
Underlord	2	3.64%	48.48	4.04	1	100.00%	0.2	1	100.00%	0.2
Abaddon	2	3.64%	48.48	4.04	1	100.00%	0.2	1	100.00%	0.2
Lifestealer	2	3.64%	48.48	4.04	1	100.00%	0.2	1	100.00%	0.2
Tidehunter	2	3.64%	48.48	16.16	1	100.00%	0.2	1	100.00%	0.2
Lina	12	21.82%	44.44	67.68	5	40.00%	0.8	7	42.86%	1.2
Necrophos	8	14.55%	43.43	48.48	2	50.00%	0.3	6	50.00%	1.0
Ursa	8	14.55%	43.43	48.48	2	50.00%	0.3	6	50.00%	1.0
Bane	5	9.09%	41.41	39.39	4	50.00%	0.7	1	100.00%	0.2
Chen	11	20.00%	40.40	70.71	7	28.57%	1.2	4	75.00%	0.7
Snapfire	8	14.55%	39.39	59.60	6	50.00%	1.0	2	0.00%	0.3
Lycan	5	9.09%	38.38	33.33	2	50.00%	0.3	3	66.67%	0.5
Storm Spirit	4	7.27%	37.37	32.32	3	66.67%	0.5	1	0.00%	0.2
Medusa	7	12.73%	36.36	52.53	2	50.00%	0.3	5	40.00%	0.8
Legion Commander	1	1.82%	35.35	6.06	1	100.00%	0.2	0	0.00%	0.0
Tusk	1	1.82%	35.35	6.06	1	100.00%	0.2	0	0.00%	0.0
Rubick	8	14.55%	33.33	78.79	6	33.33%	1.0	2	0.00%	0.3
Luna	7	12.73%	32.32	62.63	2	0.00%	0.3	5	60.00%	0.8
Dragon Knight	10	18.18%	31.31	88.89	6	16.67%	1.0	4	50.00%	0.7
Pudge	8	14.55%	30.30	83.84	8	25.00%	1.3	0	0.00%	0.0
Dark Seer	3	5.45%	29.29	27.27	1	0.00%	0.2	2	100.00%	0.3
Mirana	8	14.55%	28.28	76.77	3	0.00%	0.5	5	60.00%	0.8
Jakiro	10	18.18%	27.27	92.93	8	25.00%	1.3	2	0.00%	0.3
Shadow Fiend	2	3.64%	26.26	25.25	2	50.00%	0.3	0	0.00%	0.0
Silencer	1	1.82%	25.25	14.14	0	0.00%	0.0	1	100.00%	0.2
Lone Druid	1	1.82%	25.25	14.14	0	0.00%	0.0	1	100.00%	0.2
Ancient Apparition	1	1.82%	25.25	1.01	0	0.00%	0.0	1	100.00%	0.2
Drow Ranger	1	1.82%	25.25	14.14	0	0.00%	0.0	1	100.00%	0.2
Meepo	1	1.82%	25.25	14.14	0	0.00%	0.0	1	100.00%	0.2
Anti-Mage	1	1.82%	25.25	14.14	0	0.00%	0.0	1	100.00%	0.2
Arc Warden	1	1.82%	25.25	14.14	0	0.00%	0.0	1	100.00%	0.2
Dark Willow	4	7.27%	18.18	49.49	2	0.00%	0.3	2	100.00%	0.3
Leshrac	3	5.45%	17.17	44.44	3	33.33%	0.5	0	0.00%	0.0
Phantom Lancer	6	10.91%	16.16	71.72	3	33.33%	0.5	3	0.00%	0.5
Crystal Maiden	4	7.27%	15.15	61.62	4	25.00%	0.7	0	0.00%	0.0
Shadow Demon	2	3.64%	14.14	19.19	0	0.00%	0.0	2	50.00%	0.3
Windranger	2	3.64%	13.13	31.31	1	0.00%	0.2	1	100.00%	0.2
Pangolier	2	3.64%	13.13	31.31	1	0.00%	0.2	1	100.00%	0.2
Invoker	7	12.73%	11.11	84.85	1	0.00%	0.2	6	16.67%	1.0
Techies	1	1.82%	10.10	38.38	1	0.00%	0.2	0	0.00%	0.0
Spirit Breaker	1	1.82%	10.10	38.38	1	0.00%	0.2	0	0.00%	0.0
Wraith King	1	1.82%	10.10	38.38	1	0.00%	0.2	0	0.00%	0.0
Huskar	1	1.82%	7.07	24.24	0	0.00%	0.0	1	0.00%	0.2
Earth Spirit	1	1.82%	6.06	38.38	1	0.00%	0.2	0	0.00%	0.0
Shadow Shaman	2	3.64%	5.05	58.59	2	0.00%	0.3	0	0.00%	0.0
Slardar	4	7.27%	4.04	77.78	1	0.00%	0.2	3	0.00%	0.5
Spectre	1	1.82%	3.03	24.24	0	0.00%	0.0	1	0.00%	0.2
Troll Warlord	1	1.82%	3.03	24.24	0	0.00%	0.0	1	0.00%	0.2
Phantom Assassin	7	12.73%	1.01	100.00	6	0.00%	1.0	1	0.00%	0.2