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): 1 - Matches: 48

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

Balance rank	Winrate	Pickrate	Contest Rate
54.0	70.3	37.4	38.3

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Necrophos	44	91.67%	100.00	79.35	17	76.47%	2.8	27	40.74%	27.0
Kunkka	26	54.17%	98.91	57.61	10	70.00%	1.7	16	62.50%	16.0
Treant Protector	28	58.33%	97.83	64.13	6	50.00%	1.0	22	68.18%	22.0
Dragon Knight	7	14.58%	96.74	7.61	3	100.00%	0.5	4	75.00%	4.0
Templar Assassin	17	35.42%	95.65	45.65	6	83.33%	1.0	11	54.55%	11.0
Huskar	23	47.92%	94.57	59.78	5	80.00%	0.8	18	55.56%	18.0
Enigma	20	41.67%	93.48	51.09	4	75.00%	0.7	16	62.50%	16.0
Undying	34	70.83%	92.39	80.43	16	50.00%	2.7	18	66.67%	18.0
Silencer	38	79.17%	91.30	88.04	19	52.63%	3.2	19	57.89%	19.0
Phantom Lancer	26	54.17%	90.22	65.22	7	57.14%	1.2	19	63.16%	19.0
Earthshaker	39	81.25%	89.13	90.22	23	60.87%	3.8	16	31.25%	16.0
Drow Ranger	20	41.67%	88.04	54.35	5	60.00%	0.8	15	66.67%	15.0
Broodmother	32	66.67%	86.96	83.70	7	57.14%	1.2	25	52.00%	25.0
Crystal Maiden	6	12.50%	85.87	10.87	6	83.33%	1.0	0	0.00%	0.0
Meepo	15	31.25%	84.78	46.74	3	66.67%	0.5	12	66.67%	12.0
Clinkz	7	14.58%	83.70	11.96	4	75.00%	0.7	3	100.00%	3.0
Faceless Void	11	22.92%	82.61	23.91	6	83.33%	1.0	5	40.00%	5.0
Io	41	85.42%	81.52	94.57	11	63.64%	1.8	30	36.67%	30.0
Pugna	23	47.92%	80.43	71.74	8	50.00%	1.3	15	60.00%	15.0
Phoenix	20	41.67%	79.35	67.39	12	58.33%	2.0	8	50.00%	8.0
Lina	19	39.58%	78.26	69.57	12	58.33%	2.0	7	42.86%	7.0
Vengeful Spirit	22	45.83%	77.17	78.26	15	46.67%	2.5	7	71.43%	7.0
Winter Wyvern	34	70.83%	76.09	92.39	15	40.00%	2.5	19	52.63%	19.0
Terrorblade	16	33.33%	75.00	60.87	7	71.43%	1.2	9	33.33%	9.0
Enchantress	27	56.25%	73.91	89.13	3	33.33%	0.5	24	50.00%	24.0
Gyrocopter	10	20.83%	72.83	50.00	10	60.00%	1.7	0	0.00%	0.0
Tiny	44	91.67%	71.74	98.91	22	27.27%	3.7	22	59.09%	22.0
Tinker	20	41.67%	70.65	75.00	6	50.00%	1.0	14	50.00%	14.0
Invoker	19	39.58%	69.57	76.09	9	66.67%	1.5	10	20.00%	10.0
Weaver	43	89.58%	68.48	100.00	15	33.33%	2.5	28	42.86%	28.0
Mirana	27	56.25%	67.39	93.48	25	44.00%	4.2	2	0.00%	2.0
Earth Spirit	7	14.58%	66.30	21.74	5	80.00%	0.8	2	0.00%	2.0
Brewmaster	6	12.50%	65.22	19.57	4	75.00%	0.7	2	50.00%	2.0
Lifestealer	3	6.25%	64.13	2.17	1	100.00%	0.2	2	100.00%	2.0
Dark Willow	10	20.83%	63.04	58.70	7	57.14%	1.2	3	33.33%	3.0
Rubick	9	18.75%	61.96	55.43	8	50.00%	1.3	1	100.00%	1.0
Lion	2	4.17%	60.87	4.35	2	100.00%	0.3	0	0.00%	0.0
Beastmaster	2	4.17%	60.87	4.35	2	100.00%	0.3	0	0.00%	0.0
Storm Spirit	14	29.17%	58.70	72.83	8	37.50%	1.3	6	66.67%	6.0
Batrider	18	37.50%	57.61	85.87	3	0.00%	0.5	15	60.00%	15.0
Ursa	27	56.25%	56.52	96.74	9	22.22%	1.5	18	44.44%	18.0
Keeper of the Light	5	10.42%	55.43	22.83	5	60.00%	0.8	0	0.00%	0.0
Spectre	19	39.58%	54.35	91.30	8	37.50%	1.3	11	36.36%	11.0
Doom	3	6.25%	53.26	8.70	2	100.00%	0.3	1	0.00%	1.0
Morphling	13	27.08%	52.17	82.61	7	42.86%	1.2	6	33.33%	6.0
Zeus	4	8.33%	51.09	14.13	2	50.00%	0.3	2	100.00%	2.0
Lich	13	27.08%	50.00	86.96	8	37.50%	1.3	5	40.00%	5.0
Nature's Prophet	5	10.42%	48.91	41.30	4	50.00%	0.7	1	100.00%	1.0
Omniknight	3	6.25%	47.83	13.04	3	66.67%	0.5	0	0.00%	0.0
Bane	6	12.50%	46.74	48.91	4	50.00%	0.7	2	50.00%	2.0
Clockwerk	6	12.50%	46.74	48.91	4	50.00%	0.7	2	50.00%	2.0
Alchemist	10	20.83%	44.57	66.30	2	50.00%	0.3	8	37.50%	8.0
Axe	4	8.33%	43.48	20.65	3	66.67%	0.5	1	0.00%	1.0
Bloodseeker	7	14.58%	42.39	52.17	2	50.00%	0.3	5	40.00%	5.0
Nyx Assassin	10	20.83%	41.30	84.78	5	20.00%	0.8	5	60.00%	5.0
Centaur Warrunner	9	18.75%	40.22	81.52	6	33.33%	1.0	3	33.33%	3.0
Slark	1	2.08%	39.13	1.09	1	100.00%	0.2	0	0.00%	0.0
Ancient Apparition	1	2.08%	39.13	6.52	1	100.00%	0.2	0	0.00%	0.0
Visage	1	2.08%	39.13	6.52	1	100.00%	0.2	0	0.00%	0.0
Tusk	4	8.33%	35.87	44.57	3	33.33%	0.5	1	100.00%	1.0
Anti-Mage	2	4.17%	34.78	9.78	1	100.00%	0.2	1	0.00%	1.0
Arc Warden	5	10.42%	33.70	68.48	3	33.33%	0.5	2	0.00%	2.0
Ember Spirit	5	10.42%	32.61	73.91	4	25.00%	0.7	1	0.00%	1.0
Wraith King	10	20.83%	31.52	97.83	6	16.67%	1.0	4	0.00%	4.0
Leshrac	3	6.25%	30.43	56.52	2	0.00%	0.3	1	100.00%	1.0
Shadow Fiend	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Lycan	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Tidehunter	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Windranger	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Magnus	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Techies	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Viper	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Juggernaut	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Shadow Shaman	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Chen	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Medusa	1	2.08%	29.35	40.22	1	0.00%	0.2	0	0.00%	0.0
Naga Siren	2	4.17%	17.39	43.48	0	0.00%	0.0	2	0.00%	2.0
Dazzle	1	2.08%	16.30	40.22	1	0.00%	0.2	0	0.00%	0.0
Luna	1	2.08%	16.30	40.22	1	0.00%	0.2	0	0.00%	0.0
Shadow Demon	1	2.08%	16.30	40.22	1	0.00%	0.2	0	0.00%	0.0
Bristleback	1	2.08%	13.04	18.48	0	0.00%	0.0	1	0.00%	1.0
Pangolier	1	2.08%	13.04	18.48	0	0.00%	0.0	1	0.00%	1.0
Abaddon	1	2.08%	13.04	18.48	0	0.00%	0.0	1	0.00%	1.0
Pudge	1	2.08%	9.78	40.22	1	0.00%	0.2	0	0.00%	0.0
Jakiro	2	4.17%	8.70	63.04	2	0.00%	0.3	0	0.00%	0.0
Puck	2	4.17%	8.70	63.04	2	0.00%	0.3	0	0.00%	0.0
Monkey King	2	4.17%	6.52	53.26	1	0.00%	0.2	1	0.00%	1.0
Venomancer	2	4.17%	5.43	43.48	0	0.00%	0.0	2	0.00%	2.0
Oracle	3	6.25%	4.35	77.17	2	0.00%	0.3	1	0.00%	1.0
Timbersaw	3	6.25%	3.26	70.65	1	0.00%	0.2	2	0.00%	2.0
Elder Titan	4	8.33%	2.17	95.65	4	0.00%	0.7	0	0.00%	0.0
Legion Commander	1	2.08%	1.09	18.48	0	0.00%	0.0	1	0.00%	1.0