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): 15 - Median hero bans (mb): 1 - Matches: 64

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

Balance rank	Winrate	Pickrate	Contest Rate
59.5	82.5	37.4	34.8

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Faceless Void	18	28.13%	100.00	8.89	8	100.00%	0.5	10	80.00%	10.0
Tiny	62	96.88%	98.89	76.67	17	64.71%	1.1	45	60.00%	45.0
Weaver	58	90.63%	97.78	87.78	24	50.00%	1.6	34	52.94%	34.0
Winter Wyvern	33	51.56%	96.67	65.56	13	53.85%	0.9	20	65.00%	20.0
Pugna	49	76.56%	95.56	83.33	15	60.00%	1.0	34	47.06%	34.0
Bloodseeker	28	43.75%	94.44	56.67	6	66.67%	0.4	22	59.09%	22.0
Io	60	93.75%	93.33	96.67	8	75.00%	0.5	52	40.38%	52.0
Terrorblade	33	51.56%	92.22	70.00	11	63.64%	0.7	22	50.00%	22.0
Broodmother	21	32.81%	91.11	43.33	2	50.00%	0.1	19	68.42%	19.0
Spectre	32	50.00%	90.00	71.11	14	57.14%	0.9	18	55.56%	18.0
Necrophos	58	90.63%	88.89	97.78	18	50.00%	1.2	40	45.00%	40.0
Silencer	56	87.50%	87.78	95.56	17	58.82%	1.1	39	38.46%	39.0
Phoenix	20	31.25%	86.67	51.11	15	60.00%	1.0	5	60.00%	5.0
Enchantress	53	82.81%	85.56	93.33	9	33.33%	0.6	44	52.27%	44.0
Leshrac	16	25.00%	84.44	42.22	9	55.56%	0.6	7	85.71%	7.0
Zeus	14	21.88%	83.33	38.89	9	66.67%	0.6	5	60.00%	5.0
Dragon Knight	19	29.69%	82.22	48.89	13	61.54%	0.9	6	50.00%	6.0
Earthshaker	45	70.31%	81.11	88.89	30	43.33%	2.0	15	60.00%	15.0
Lycan	24	37.50%	80.00	63.33	8	62.50%	0.5	16	50.00%	16.0
Phantom Lancer	45	70.31%	78.89	90.00	17	52.94%	1.1	28	39.29%	28.0
Rubick	18	28.13%	77.78	57.78	15	60.00%	1.0	3	33.33%	3.0
Undying	34	53.13%	76.67	82.22	15	46.67%	1.0	19	52.63%	19.0
Nyx Assassin	26	40.63%	75.56	73.33	14	57.14%	0.9	12	41.67%	12.0
Huskar	22	34.38%	74.44	60.00	1	100.00%	0.1	21	52.38%	21.0
Invoker	35	54.69%	73.33	84.44	13	53.85%	0.9	22	40.91%	22.0
Magnus	6	9.38%	72.22	11.11	4	75.00%	0.3	2	100.00%	2.0
Ogre Magi	5	7.81%	71.11	10.00	5	80.00%	0.3	0	0.00%	0.0
Brewmaster	26	40.63%	70.00	78.89	18	38.89%	1.2	8	87.50%	8.0
Lina	20	31.25%	68.89	68.89	15	53.33%	1.0	5	40.00%	5.0
Tidehunter	5	7.81%	67.78	7.78	2	100.00%	0.1	3	66.67%	3.0
Gyrocopter	8	12.50%	66.67	31.11	8	62.50%	0.5	0	0.00%	0.0
Drow Ranger	20	31.25%	65.56	72.22	5	60.00%	0.3	15	40.00%	15.0
Clinkz	27	42.19%	64.44	85.56	14	28.57%	0.9	13	69.23%	13.0
Ursa	21	32.81%	63.33	80.00	15	40.00%	1.0	6	66.67%	6.0
Monkey King	13	20.31%	62.22	55.56	8	50.00%	0.5	5	60.00%	5.0
Phantom Assassin	6	9.38%	61.11	18.89	6	66.67%	0.4	0	0.00%	0.0
Treant Protector	14	21.88%	60.00	62.22	10	60.00%	0.7	4	0.00%	4.0
Lich	12	18.75%	58.89	50.00	9	55.56%	0.6	3	33.33%	3.0
Mirana	13	20.31%	57.78	61.11	11	45.45%	0.7	2	100.00%	2.0
Batrider	17	26.56%	56.67	66.67	6	50.00%	0.4	11	45.45%	11.0
Axe	4	6.25%	55.56	12.22	4	75.00%	0.3	0	0.00%	0.0
Storm Spirit	26	40.63%	54.44	86.67	7	28.57%	0.5	19	47.37%	19.0
Queen of Pain	6	9.38%	53.33	20.00	5	60.00%	0.3	1	100.00%	1.0
Clockwerk	8	12.50%	52.22	32.22	4	75.00%	0.3	4	25.00%	4.0
Bane	30	46.88%	51.11	100.00	22	40.91%	1.5	8	0.00%	8.0
Vengeful Spirit	16	25.00%	50.00	77.78	10	50.00%	0.7	6	16.67%	6.0
Crystal Maiden	8	12.50%	48.89	44.44	7	57.14%	0.5	1	0.00%	1.0
Shadow Demon	4	6.25%	47.78	13.33	3	66.67%	0.2	1	100.00%	1.0
Kunkka	17	26.56%	46.67	81.11	8	37.50%	0.5	9	44.44%	9.0
Visage	13	20.31%	45.56	64.44	3	33.33%	0.2	10	50.00%	10.0
Chen	23	35.94%	44.44	92.22	6	33.33%	0.4	17	35.29%	17.0
Luna	6	9.38%	43.33	33.33	5	60.00%	0.3	1	0.00%	1.0
Tusk	7	10.94%	42.22	41.11	5	40.00%	0.3	2	100.00%	2.0
Templar Assassin	13	20.31%	41.11	75.56	5	20.00%	0.3	8	62.50%	8.0
Earth Spirit	6	9.38%	40.00	40.00	6	50.00%	0.4	0	0.00%	0.0
Windranger	7	10.94%	38.89	45.56	6	50.00%	0.4	1	0.00%	1.0
Meepo	7	10.94%	37.78	34.44	1	0.00%	0.1	6	66.67%	6.0
Puck	4	6.25%	36.67	15.56	1	0.00%	0.1	3	100.00%	3.0
Dark Willow	17	26.56%	35.56	98.89	11	27.27%	0.7	6	16.67%	6.0
Medusa	1	1.56%	34.44	4.44	1	100.00%	0.1	0	0.00%	0.0
Elder Titan	1	1.56%	34.44	4.44	1	100.00%	0.1	0	0.00%	0.0
Spirit Breaker	1	1.56%	34.44	4.44	1	100.00%	0.1	0	0.00%	0.0
Naga Siren	1	1.56%	34.44	4.44	1	100.00%	0.1	0	0.00%	0.0
Nature's Prophet	9	14.06%	30.00	74.44	6	33.33%	0.4	3	33.33%	3.0
Morphling	6	9.38%	28.89	46.67	4	25.00%	0.3	2	100.00%	2.0
Arc Warden	6	9.38%	27.78	47.78	4	50.00%	0.3	2	0.00%	2.0
Ember Spirit	14	21.88%	26.67	91.11	5	20.00%	0.3	9	33.33%	9.0
Alchemist	12	18.75%	25.56	94.44	6	16.67%	0.4	6	33.33%	6.0
Doom	2	3.13%	24.44	16.67	2	50.00%	0.1	0	0.00%	0.0
Lifestealer	6	9.38%	23.33	67.78	5	20.00%	0.3	1	100.00%	1.0
Legion Commander	1	1.56%	22.22	6.67	0	0.00%	0.0	1	100.00%	1.0
Wraith King	1	1.56%	22.22	6.67	0	0.00%	0.0	1	100.00%	1.0
Riki	3	4.69%	20.00	30.00	2	50.00%	0.1	1	0.00%	1.0
Jakiro	3	4.69%	18.89	37.78	3	33.33%	0.2	0	0.00%	0.0
Lion	3	4.69%	18.89	37.78	3	33.33%	0.2	0	0.00%	0.0
Troll Warlord	4	6.25%	16.67	58.89	4	25.00%	0.3	0	0.00%	0.0
Shadow Fiend	2	3.13%	15.56	17.78	1	0.00%	0.1	1	100.00%	1.0
Venomancer	3	4.69%	14.44	35.56	1	0.00%	0.1	2	50.00%	2.0
Shadow Shaman	1	1.56%	13.33	28.89	1	0.00%	0.1	0	0.00%	0.0
Enigma	2	3.13%	12.22	54.44	2	0.00%	0.1	0	0.00%	0.0
Oracle	2	3.13%	12.22	54.44	2	0.00%	0.1	0	0.00%	0.0
Bristleback	1	1.56%	10.00	28.89	1	0.00%	0.1	0	0.00%	0.0
Centaur Warrunner	1	1.56%	10.00	28.89	1	0.00%	0.1	0	0.00%	0.0
Keeper of the Light	2	3.13%	7.78	54.44	2	0.00%	0.1	0	0.00%	0.0
Disruptor	1	1.56%	6.67	28.89	1	0.00%	0.1	0	0.00%	0.0
Juggernaut	1	1.56%	6.67	28.89	1	0.00%	0.1	0	0.00%	0.0
Viper	1	1.56%	6.67	28.89	1	0.00%	0.1	0	0.00%	0.0
Warlock	1	1.56%	6.67	28.89	1	0.00%	0.1	0	0.00%	0.0
Anti-Mage	1	1.56%	6.67	28.89	1	0.00%	0.1	0	0.00%	0.0
Underlord	1	1.56%	1.11	15.56	0	0.00%	0.0	1	0.00%	1.0