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): 4 - Matches: 24

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

Balance rank	Winrate	Pickrate	Contest Rate
44.2	43.2	53.7	28.5

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Dawnbreaker	17	70.83%	100.00	53.26	3	66.67%	1.0	14	78.57%	3.5
Viper	16	66.67%	98.91	50.00	4	100.00%	1.3	12	58.33%	3.0
Bloodseeker	11	45.83%	97.83	16.30	1	100.00%	0.3	10	80.00%	2.5
Faceless Void	9	37.50%	96.74	13.04	4	75.00%	1.3	5	100.00%	1.3
Batrider	19	79.17%	95.65	68.48	5	80.00%	1.7	14	57.14%	3.5
Dark Willow	9	37.50%	94.57	20.65	6	83.33%	2.0	3	66.67%	0.8
Queen of Pain	12	50.00%	93.48	51.09	5	80.00%	1.7	7	57.14%	1.8
Kunkka	13	54.17%	92.39	55.43	3	66.67%	1.0	10	70.00%	2.5
Razor	10	41.67%	91.30	38.04	3	100.00%	1.0	7	42.86%	1.8
Winter Wyvern	16	66.67%	90.22	73.91	7	57.14%	2.3	9	55.56%	2.3
Primal Beast	6	25.00%	89.13	15.22	3	66.67%	1.0	3	100.00%	0.8
Tiny	19	79.17%	88.04	89.13	12	66.67%	4.0	7	0.00%	1.8
Lycan	8	33.33%	86.96	47.83	7	71.43%	2.3	1	0.00%	0.3
Ember Spirit	11	45.83%	85.87	64.13	4	50.00%	1.3	7	71.43%	1.8
Monkey King	14	58.33%	84.78	80.43	7	42.86%	2.3	7	71.43%	1.8
Beastmaster	17	70.83%	83.70	88.04	1	100.00%	0.3	16	43.75%	4.0
Visage	15	62.50%	82.61	83.70	4	100.00%	1.3	11	18.18%	2.8
Pangolier	8	33.33%	81.52	48.91	3	66.67%	1.0	5	60.00%	1.3
Chaos Knight	13	54.17%	80.43	72.83	2	100.00%	0.7	11	36.36%	2.8
Morphling	6	25.00%	79.35	19.57	1	0.00%	0.3	5	100.00%	1.3
Timbersaw	11	45.83%	78.26	69.57	4	50.00%	1.3	7	57.14%	1.8
Night Stalker	6	25.00%	77.17	31.52	3	66.67%	1.0	3	66.67%	0.8
Mars	15	62.50%	76.09	91.30	7	42.86%	2.3	8	50.00%	2.0
Undying	10	41.67%	75.00	66.30	1	0.00%	0.3	9	66.67%	2.3
Skywrath Mage	4	16.67%	73.91	10.87	1	100.00%	0.3	3	66.67%	0.8
Enigma	6	25.00%	72.83	46.74	4	50.00%	1.3	2	100.00%	0.5
Marci	14	58.33%	71.74	92.39	8	25.00%	2.7	6	83.33%	1.5
Void Spirit	8	33.33%	70.65	60.87	1	100.00%	0.3	7	42.86%	1.8
Phantom Lancer	8	33.33%	70.65	60.87	1	100.00%	0.3	7	42.86%	1.8
Ogre Magi	5	20.83%	68.48	34.78	5	60.00%	1.7	0	0.00%	0.0
Chen	5	20.83%	67.39	32.61	3	66.67%	1.0	2	50.00%	0.5
Invoker	7	29.17%	66.30	57.61	2	50.00%	0.7	5	60.00%	1.3
Phoenix	7	29.17%	65.22	67.39	5	60.00%	1.7	2	0.00%	0.5
Leshrac	6	25.00%	64.13	63.04	4	50.00%	1.3	2	50.00%	0.5
Elder Titan	3	12.50%	63.04	18.48	3	66.67%	1.0	0	0.00%	0.0
Pudge	3	12.50%	63.04	18.48	3	66.67%	1.0	0	0.00%	0.0
Medusa	6	25.00%	60.87	58.70	2	50.00%	0.7	4	50.00%	1.0
Mirana	4	16.67%	59.78	30.43	1	100.00%	0.3	3	33.33%	0.8
Zeus	4	16.67%	59.78	30.43	1	100.00%	0.3	3	33.33%	0.8
Sven	4	16.67%	59.78	30.43	1	100.00%	0.3	3	33.33%	0.8
Death Prophet	13	54.17%	56.52	96.74	8	12.50%	2.7	5	80.00%	1.3
Rubick	7	29.17%	55.43	71.74	3	33.33%	1.0	4	50.00%	1.0
Luna	5	20.83%	54.35	54.35	1	100.00%	0.3	4	25.00%	1.0
Clockwerk	5	20.83%	53.26	65.22	4	50.00%	1.3	1	0.00%	0.3
Tusk	6	25.00%	52.17	70.65	4	50.00%	1.3	2	0.00%	0.5
Juggernaut	11	45.83%	51.09	94.57	2	50.00%	0.7	9	22.22%	2.3
Doom	1	4.17%	50.00	1.09	1	100.00%	0.3	0	0.00%	0.0
Vengeful Spirit	1	4.17%	50.00	9.78	1	100.00%	0.3	0	0.00%	0.0
Shadow Fiend	1	4.17%	50.00	7.61	1	100.00%	0.3	0	0.00%	0.0
Grimstroke	1	4.17%	50.00	7.61	1	100.00%	0.3	0	0.00%	0.0
Nature's Prophet	1	4.17%	50.00	7.61	1	100.00%	0.3	0	0.00%	0.0
Naga Siren	1	4.17%	50.00	7.61	1	100.00%	0.3	0	0.00%	0.0
Omniknight	4	16.67%	43.48	36.96	2	50.00%	0.7	2	50.00%	0.5
Dazzle	3	12.50%	42.39	11.96	0	0.00%	0.0	3	66.67%	0.8
Puck	17	70.83%	41.30	100.00	6	16.67%	2.0	11	27.27%	2.8
Ursa	6	25.00%	40.22	79.35	5	40.00%	1.7	1	0.00%	0.3
Enchantress	7	29.17%	39.13	90.22	6	33.33%	2.0	1	0.00%	0.3
Alchemist	7	29.17%	38.04	82.61	2	0.00%	0.7	5	60.00%	1.3
Bristleback	7	29.17%	36.96	86.96	3	0.00%	1.0	4	75.00%	1.0
Snapfire	6	25.00%	35.87	84.78	4	25.00%	1.3	2	50.00%	0.5
Lina	8	33.33%	34.78	93.48	4	25.00%	1.3	4	25.00%	1.0
Ancient Apparition	4	16.67%	33.70	56.52	1	100.00%	0.3	3	0.00%	0.8
Earth Spirit	2	8.33%	32.61	27.17	2	50.00%	0.7	0	0.00%	0.0
Abaddon	1	4.17%	31.52	3.26	0	0.00%	0.0	1	100.00%	0.3
Wraith King	1	4.17%	31.52	3.26	0	0.00%	0.0	1	100.00%	0.3
Oracle	1	4.17%	31.52	8.70	0	0.00%	0.0	1	100.00%	0.3
Templar Assassin	3	12.50%	28.26	52.17	2	50.00%	0.7	1	0.00%	0.3
Slark	6	25.00%	27.17	81.52	1	0.00%	0.3	5	40.00%	1.3
Terrorblade	9	37.50%	26.09	95.65	1	0.00%	0.3	8	25.00%	2.0
Legion Commander	3	12.50%	25.00	61.96	3	33.33%	1.0	0	0.00%	0.0
Troll Warlord	2	8.33%	23.91	14.13	0	0.00%	0.0	2	50.00%	0.5
Huskar	3	12.50%	22.83	35.87	0	0.00%	0.0	3	33.33%	0.8
Venomancer	2	8.33%	21.74	33.70	1	0.00%	0.3	1	100.00%	0.3
Outworld Destroyer	1	4.17%	20.65	26.09	0	0.00%	0.0	1	0.00%	0.3
Underlord	1	4.17%	19.57	45.65	1	0.00%	0.3	0	0.00%	0.0
Jakiro	2	8.33%	18.48	78.26	2	0.00%	0.7	0	0.00%	0.0
Bounty Hunter	1	4.17%	17.39	45.65	1	0.00%	0.3	0	0.00%	0.0
Weaver	6	25.00%	16.30	98.91	4	0.00%	1.3	2	0.00%	0.5
Sniper	1	4.17%	15.22	45.65	1	0.00%	0.3	0	0.00%	0.0
Disruptor	2	8.33%	14.13	78.26	2	0.00%	0.7	0	0.00%	0.0
Keeper of the Light	1	4.17%	13.04	45.65	1	0.00%	0.3	0	0.00%	0.0
Centaur Warrunner	1	4.17%	13.04	45.65	1	0.00%	0.3	0	0.00%	0.0
Windranger	1	4.17%	13.04	45.65	1	0.00%	0.3	0	0.00%	0.0
Shadow Demon	1	4.17%	9.78	26.09	0	0.00%	0.0	1	0.00%	0.3
Necrophos	4	16.67%	8.70	97.83	4	0.00%	1.3	0	0.00%	0.0
Lifestealer	1	4.17%	7.61	26.09	0	0.00%	0.0	1	0.00%	0.3
Earthshaker	2	8.33%	6.52	78.26	2	0.00%	0.7	0	0.00%	0.0
Lion	1	4.17%	5.43	45.65	1	0.00%	0.3	0	0.00%	0.0
Brewmaster	3	12.50%	4.35	85.87	1	0.00%	0.3	2	0.00%	0.5
Nyx Assassin	1	4.17%	3.26	26.09	0	0.00%	0.0	1	0.00%	0.3
Storm Spirit	1	4.17%	3.26	26.09	0	0.00%	0.0	1	0.00%	0.3
Witch Doctor	2	8.33%	1.09	78.26	2	0.00%	0.7	0	0.00%	0.0