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): 3 - Median hero bans (mb): 5 - Matches: 48

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

Balance rank	Winrate	Pickrate	Contest Rate
54.5	69.6	39.3	39.3

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Rubick	21	43.75%	100.00	41.18	7	85.71%	2.3	14	64.29%	2.8
Enigma	25	52.08%	99.02	51.96	14	78.57%	4.7	11	45.45%	2.2
Faceless Void	38	79.17%	98.04	73.53	18	61.11%	6.0	20	60.00%	4.0
Marci	45	93.75%	97.06	84.31	23	65.22%	7.7	22	40.91%	4.4
Dawnbreaker	45	93.75%	96.08	85.29	12	58.33%	4.0	33	54.55%	6.6
Void Spirit	24	50.00%	95.10	60.78	13	61.54%	4.3	11	72.73%	2.2
Dragon Knight	15	31.25%	94.12	39.22	3	100.00%	1.0	12	58.33%	2.4
Bane	7	14.58%	93.14	11.76	6	83.33%	2.0	1	100.00%	0.2
Winter Wyvern	32	66.67%	92.16	79.41	13	46.15%	4.3	19	68.42%	3.8
Bristleback	22	45.83%	91.18	63.73	7	85.71%	2.3	15	40.00%	3.0
Razor	30	62.50%	90.20	78.43	11	54.55%	3.7	19	57.89%	3.8
Bloodseeker	31	64.58%	89.22	82.35	7	42.86%	2.3	24	58.33%	4.8
Tiny	46	95.83%	88.24	96.08	34	47.06%	11.3	12	41.67%	2.4
Viper	27	56.25%	87.25	75.49	4	50.00%	1.3	23	56.52%	4.6
Snapfire	8	16.67%	86.27	19.61	5	80.00%	1.7	3	66.67%	0.6
Death Prophet	32	66.67%	85.29	86.27	17	52.94%	5.7	15	46.67%	3.0
Mars	26	54.17%	84.31	77.45	9	55.56%	3.0	17	52.94%	3.4
Puck	41	85.42%	83.33	93.14	10	50.00%	3.3	31	45.16%	6.2
Doom	13	27.08%	82.35	43.14	4	50.00%	1.3	9	77.78%	1.8
Chaos Knight	21	43.75%	81.37	72.55	7	71.43%	2.3	14	35.71%	2.8
Templar Assassin	19	39.58%	80.39	67.65	7	42.86%	2.3	12	66.67%	2.4
Juggernaut	11	22.92%	79.41	42.16	3	66.67%	1.0	8	62.50%	1.6
Enchantress	14	29.17%	78.43	58.82	5	80.00%	1.7	9	33.33%	1.8
Phoenix	3	6.25%	77.45	1.96	2	100.00%	0.7	1	100.00%	0.2
Medusa	13	27.08%	76.47	49.02	2	100.00%	0.7	11	45.45%	2.2
Ember Spirit	35	72.92%	75.49	98.04	16	37.50%	5.3	19	47.37%	3.8
Warlock	18	37.50%	74.51	76.47	14	50.00%	4.7	4	50.00%	0.8
Timbersaw	29	60.42%	73.53	91.18	9	33.33%	3.0	20	50.00%	4.0
Skywrath Mage	10	20.83%	72.55	50.98	9	55.56%	3.0	1	100.00%	0.2
Batrider	29	60.42%	71.57	90.20	4	50.00%	1.3	25	40.00%	5.0
Earth Spirit	16	33.33%	70.59	71.57	8	50.00%	2.7	8	50.00%	1.6
Terrorblade	14	29.17%	69.61	64.71	3	66.67%	1.0	11	45.45%	2.2
Nyx Assassin	17	35.42%	68.63	74.51	6	33.33%	2.0	11	63.64%	2.2
Monkey King	22	45.83%	67.65	87.25	9	33.33%	3.0	13	53.85%	2.6
Ursa	7	14.58%	66.67	27.45	2	100.00%	0.7	5	40.00%	1.0
Beastmaster	22	45.83%	65.69	88.24	5	20.00%	1.7	17	52.94%	3.4
Night Stalker	11	22.92%	64.71	52.94	2	0.00%	0.7	9	77.78%	1.8
Leshrac	8	16.67%	63.73	40.20	2	100.00%	0.7	6	33.33%	1.2
Phantom Lancer	4	8.33%	62.75	6.86	1	100.00%	0.3	3	66.67%	0.6
Lifestealer	9	18.75%	61.76	44.12	2	50.00%	0.7	7	57.14%	1.4
Jakiro	8	16.67%	60.78	59.80	8	50.00%	2.7	0	0.00%	0.0
Visage	11	22.92%	59.80	65.69	4	25.00%	1.3	7	71.43%	1.4
Naga Siren	5	10.42%	58.82	26.47	3	66.67%	1.0	2	50.00%	0.4
Shadow Shaman	5	10.42%	57.84	17.65	1	100.00%	0.3	4	50.00%	0.8
Nature's Prophet	20	41.67%	56.86	97.06	11	27.27%	3.7	9	44.44%	1.8
Zeus	19	39.58%	55.88	94.12	8	37.50%	2.7	11	27.27%	2.2
Morphling	11	22.92%	54.90	69.61	3	66.67%	1.0	8	25.00%	1.6
Keeper of the Light	27	56.25%	53.92	99.02	8	25.00%	2.7	19	31.58%	3.8
Invoker	9	18.75%	52.94	62.75	2	50.00%	0.7	7	42.86%	1.4
Lion	3	6.25%	51.96	16.67	3	66.67%	1.0	0	0.00%	0.0
Lina	3	6.25%	51.96	16.67	3	66.67%	1.0	0	0.00%	0.0
Pugna	3	6.25%	51.96	16.67	3	66.67%	1.0	0	0.00%	0.0
Wraith King	5	10.42%	49.02	29.41	2	50.00%	0.7	3	66.67%	0.6
Necrophos	3	6.25%	48.04	8.82	1	100.00%	0.3	2	50.00%	0.4
Brewmaster	3	6.25%	48.04	8.82	1	100.00%	0.3	2	50.00%	0.4
Clockwerk	8	16.67%	46.08	68.63	7	42.86%	2.3	1	0.00%	0.2
Spectre	5	10.42%	45.10	25.49	0	0.00%	0.0	5	60.00%	1.0
Huskar	2	4.17%	44.12	4.90	0	0.00%	0.0	2	100.00%	0.4
Lycan	7	14.58%	43.14	53.92	2	50.00%	0.7	5	40.00%	1.0
Pangolier	8	16.67%	42.16	66.67	5	20.00%	1.7	3	100.00%	0.6
Phantom Assassin	6	12.50%	41.18	50.00	3	33.33%	1.0	3	66.67%	0.6
Dazzle	3	6.25%	40.20	18.63	2	50.00%	0.7	1	100.00%	0.2
Hoodwink	5	10.42%	39.22	47.06	4	50.00%	1.3	1	0.00%	0.2
Ancient Apparition	5	10.42%	39.22	47.06	4	50.00%	1.3	1	0.00%	0.2
Slark	5	10.42%	39.22	47.06	4	50.00%	1.3	1	0.00%	0.2
Vengeful Spirit	1	2.08%	36.27	5.88	1	100.00%	0.3	0	0.00%	0.0
Centaur Warrunner	1	2.08%	36.27	3.92	1	100.00%	0.3	0	0.00%	0.0
Tusk	6	12.50%	34.31	61.76	4	50.00%	1.3	2	0.00%	0.4
Mirana	3	6.25%	33.33	10.78	0	0.00%	0.0	3	66.67%	0.6
Venomancer	2	4.17%	32.35	9.80	1	100.00%	0.3	1	0.00%	0.2
Alchemist	5	10.42%	31.37	56.86	3	33.33%	1.0	2	50.00%	0.4
Windranger	2	4.17%	30.39	24.51	2	50.00%	0.7	0	0.00%	0.0
Earthshaker	1	2.08%	29.41	2.94	0	0.00%	0.0	1	100.00%	0.2
Troll Warlord	1	2.08%	29.41	0.98	0	0.00%	0.0	1	100.00%	0.2
Grimstroke	9	18.75%	27.45	92.16	6	16.67%	2.0	3	33.33%	0.6
Anti-Mage	7	14.58%	26.47	81.37	2	0.00%	0.7	5	40.00%	1.0
Chen	2	4.17%	25.49	13.73	0	0.00%	0.0	2	50.00%	0.4
Ogre Magi	2	4.17%	25.49	13.73	0	0.00%	0.0	2	50.00%	0.4
Crystal Maiden	6	12.50%	23.53	89.22	6	16.67%	2.0	0	0.00%	0.0
Kunkka	11	22.92%	22.55	100.00	6	16.67%	2.0	5	0.00%	1.0
Pudge	2	4.17%	21.57	28.43	1	0.00%	0.3	1	100.00%	0.2
Queen of Pain	4	8.33%	20.59	48.04	0	0.00%	0.0	4	25.00%	0.8
Shadow Demon	3	6.25%	19.61	57.84	2	0.00%	0.7	1	100.00%	0.2
Io	5	10.42%	18.63	80.39	2	0.00%	0.7	3	33.33%	0.6
Shadow Fiend	1	2.08%	17.65	23.53	0	0.00%	0.0	1	0.00%	0.2
Sand King	1	2.08%	16.67	38.24	1	0.00%	0.3	0	0.00%	0.0
Oracle	1	2.08%	16.67	38.24	1	0.00%	0.3	0	0.00%	0.0
Storm Spirit	1	2.08%	16.67	38.24	1	0.00%	0.3	0	0.00%	0.0
Riki	1	2.08%	16.67	38.24	1	0.00%	0.3	0	0.00%	0.0
Sven	1	2.08%	16.67	38.24	1	0.00%	0.3	0	0.00%	0.0
Tidehunter	1	2.08%	11.76	23.53	0	0.00%	0.0	1	0.00%	0.2
Treant Protector	1	2.08%	10.78	38.24	1	0.00%	0.3	0	0.00%	0.0
Luna	1	2.08%	10.78	38.24	1	0.00%	0.3	0	0.00%	0.0
Magnus	1	2.08%	10.78	38.24	1	0.00%	0.3	0	0.00%	0.0
Outworld Destroyer	1	2.08%	7.84	23.53	0	0.00%	0.0	1	0.00%	0.2
Axe	1	2.08%	6.86	38.24	1	0.00%	0.3	0	0.00%	0.0
Slardar	2	4.17%	5.88	55.88	1	0.00%	0.3	1	0.00%	0.2
Undying	2	4.17%	5.88	55.88	1	0.00%	0.3	1	0.00%	0.2
Weaver	5	10.42%	3.92	95.10	3	0.00%	1.0	2	0.00%	0.4
Lone Druid	4	8.33%	2.94	83.33	1	0.00%	0.3	3	0.00%	0.6
Legion Commander	3	6.25%	1.96	70.59	1	0.00%	0.3	2	0.00%	0.4
Underlord	1	2.08%	0.98	23.53	0	0.00%	0.0	1	0.00%	0.2