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): 4 - Median hero bans (mb): 8 - Matches: 62

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

Balance rank	Winrate	Pickrate	Contest Rate
63.3	84.4	47.1	32.2

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Spirit Breaker	60	96.77%	100.00	83.16	26	57.69%	6.5	34	55.88%	4.3
Templar Assassin	39	62.90%	98.95	62.11	15	66.67%	3.8	24	54.17%	3.0
Mars	52	83.87%	97.89	78.95	25	52.00%	6.3	27	62.96%	3.4
Monkey King	52	83.87%	96.84	77.89	16	50.00%	4.0	36	61.11%	4.5
Bane	38	61.29%	95.79	67.37	30	63.33%	7.5	8	25.00%	1.0
Rubick	24	38.71%	94.74	48.42	20	60.00%	5.0	4	100.00%	0.5
Kunkka	35	56.45%	93.68	64.21	9	55.56%	2.3	26	61.54%	3.3
Morphling	28	45.16%	92.63	56.84	8	62.50%	2.0	20	60.00%	2.5
Faceless Void	17	27.42%	91.58	33.68	3	33.33%	0.8	14	85.71%	1.8
Beastmaster	19	30.65%	90.53	37.89	5	80.00%	1.3	14	57.14%	1.8
Hoodwink	4	6.45%	89.47	3.16	4	100.00%	1.0	0	0.00%	0.0
Wraith King	35	56.45%	88.42	70.53	12	58.33%	3.0	23	52.17%	2.9
Grimstroke	42	67.74%	87.37	85.26	26	57.69%	6.5	16	31.25%	2.0
Phantom Lancer	11	17.74%	86.32	21.05	2	50.00%	0.5	9	88.89%	1.1
Razor	47	75.81%	85.26	90.53	11	63.64%	2.8	36	41.67%	4.5
Outworld Destroyer	55	88.71%	84.21	95.79	24	41.67%	6.0	31	54.84%	3.9
Undying	22	35.48%	83.16	57.89	14	57.14%	3.5	8	62.50%	1.0
Phantom Assassin	17	27.42%	82.11	42.11	7	42.86%	1.8	10	90.00%	1.3
Clockwerk	16	25.81%	81.05	43.16	12	58.33%	3.0	4	75.00%	0.5
Queen of Pain	52	83.87%	80.00	97.89	27	51.85%	6.8	25	28.00%	3.1
Terrorblade	22	35.48%	78.95	61.05	7	42.86%	1.8	15	66.67%	1.9
Tidehunter	10	16.13%	77.89	23.16	3	33.33%	0.8	7	100.00%	0.9
Invoker	24	38.71%	76.84	66.32	3	66.67%	0.8	21	47.62%	2.6
Anti-Mage	9	14.52%	75.79	22.11	4	75.00%	1.0	5	60.00%	0.6
Night Stalker	29	46.77%	74.74	81.05	9	55.56%	2.3	20	40.00%	2.5
Weaver	38	61.29%	73.68	92.63	6	0.00%	1.5	32	59.38%	4.0
Dark Willow	15	24.19%	72.63	52.63	10	50.00%	2.5	5	80.00%	0.6
Nyx Assassin	17	27.42%	71.58	58.95	9	66.67%	2.3	8	25.00%	1.0
Ogre Magi	13	20.97%	70.53	45.26	10	50.00%	2.5	3	100.00%	0.4
Broodmother	36	58.06%	69.47	93.68	4	50.00%	1.0	32	40.63%	4.0
Lina	33	53.23%	68.42	91.58	4	75.00%	1.0	29	34.48%	3.6
Death Prophet	30	48.39%	67.37	89.47	9	55.56%	2.3	21	33.33%	2.6
Storm Spirit	21	33.87%	66.32	68.42	8	62.50%	2.0	13	30.77%	1.6
Timbersaw	19	30.65%	65.26	63.16	5	40.00%	1.3	14	57.14%	1.8
Medusa	27	43.55%	64.21	87.37	8	25.00%	2.0	19	57.89%	2.4
Batrider	23	37.10%	63.16	74.74	3	66.67%	0.8	20	40.00%	2.5
Ursa	13	20.97%	62.11	38.95	1	100.00%	0.3	12	50.00%	1.5
Io	25	40.32%	61.05	84.21	7	42.86%	1.8	18	44.44%	2.3
Drow Ranger	11	17.74%	60.00	40.00	5	40.00%	1.3	6	83.33%	0.8
Mirana	8	12.90%	58.95	34.74	7	57.14%	1.8	1	100.00%	0.1
Ember Spirit	32	51.61%	57.89	96.84	20	40.00%	5.0	12	33.33%	1.5
Sand King	5	8.06%	56.84	13.68	3	66.67%	0.8	2	100.00%	0.3
Puck	43	69.35%	55.79	98.95	8	25.00%	2.0	35	40.00%	4.4
Lifestealer	23	37.10%	54.74	82.11	7	42.86%	1.8	16	43.75%	2.0
Pugna	2	3.23%	53.68	5.26	2	100.00%	0.5	0	0.00%	0.0
Disruptor	2	3.23%	53.68	5.26	2	100.00%	0.5	0	0.00%	0.0
Void Spirit	17	27.42%	51.58	76.84	14	42.86%	3.5	3	33.33%	0.4
Luna	18	29.03%	50.53	75.79	8	37.50%	2.0	10	50.00%	1.3
Shadow Demon	13	20.97%	49.47	60.00	6	50.00%	1.5	7	42.86%	0.9
Gyrocopter	9	14.52%	48.42	44.21	7	42.86%	1.8	2	100.00%	0.3
Legion Commander	9	14.52%	47.37	36.84	2	50.00%	0.5	7	57.14%	0.9
Lycan	16	25.81%	46.32	69.47	3	66.67%	0.8	13	30.77%	1.6
Windranger	2	3.23%	45.26	6.32	1	100.00%	0.3	1	100.00%	0.1
Naga Siren	6	9.68%	44.21	24.21	1	100.00%	0.3	5	40.00%	0.6
Clinkz	3	4.84%	43.16	15.79	3	66.67%	0.8	0	0.00%	0.0
Riki	3	4.84%	43.16	15.79	3	66.67%	0.8	0	0.00%	0.0
Treant Protector	6	9.68%	41.05	35.79	4	50.00%	1.0	2	50.00%	0.3
Spectre	3	4.84%	40.00	9.47	1	100.00%	0.3	2	50.00%	0.3
Lion	13	20.97%	38.95	86.32	11	27.27%	2.8	2	100.00%	0.3
Pangolier	25	40.32%	37.89	100.00	13	23.08%	3.3	12	33.33%	1.5
Nature's Prophet	6	9.68%	36.84	41.05	5	40.00%	1.3	1	100.00%	0.1
Magnus	7	11.29%	35.79	49.47	5	40.00%	1.3	2	50.00%	0.3
Leshrac	5	8.06%	34.74	32.63	3	33.33%	0.8	2	100.00%	0.3
Elder Titan	4	6.45%	33.68	31.58	4	50.00%	1.0	0	0.00%	0.0
Abaddon	9	14.52%	32.63	65.26	5	40.00%	1.3	4	25.00%	0.5
Dark Seer	8	12.90%	31.58	51.58	2	0.00%	0.5	6	66.67%	0.8
Phoenix	1	1.61%	30.53	2.11	1	100.00%	0.3	0	0.00%	0.0
Enchantress	1	1.61%	30.53	8.42	1	100.00%	0.3	0	0.00%	0.0
Sniper	1	1.61%	30.53	2.11	1	100.00%	0.3	0	0.00%	0.0
Shadow Fiend	1	1.61%	30.53	8.42	1	100.00%	0.3	0	0.00%	0.0
Snapfire	13	20.97%	26.32	94.74	10	30.00%	2.5	3	0.00%	0.4
Juggernaut	4	6.45%	25.26	25.26	2	50.00%	0.5	2	50.00%	0.3
Troll Warlord	10	16.13%	24.21	72.63	3	33.33%	0.8	7	28.57%	0.9
Doom	7	11.29%	23.16	47.37	1	100.00%	0.3	6	16.67%	0.8
Slardar	2	3.23%	22.11	11.58	1	100.00%	0.3	1	0.00%	0.1
Winter Wyvern	2	3.23%	22.11	11.58	1	100.00%	0.3	1	0.00%	0.1
Oracle	5	8.06%	20.00	50.53	4	25.00%	1.0	1	100.00%	0.1
Vengeful Spirit	2	3.23%	18.95	20.00	2	50.00%	0.5	0	0.00%	0.0
Earthshaker	2	3.23%	18.95	20.00	2	50.00%	0.5	0	0.00%	0.0
Earth Spirit	2	3.23%	18.95	20.00	2	50.00%	0.5	0	0.00%	0.0
Necrophos	2	3.23%	18.95	20.00	2	50.00%	0.5	0	0.00%	0.0
Viper	6	9.68%	14.74	55.79	1	0.00%	0.3	5	40.00%	0.6
Brewmaster	4	6.45%	13.68	46.32	3	33.33%	0.8	1	0.00%	0.1
Bloodseeker	9	14.52%	12.63	88.42	2	50.00%	0.5	7	0.00%	0.9
Silencer	2	3.23%	11.58	12.63	0	0.00%	0.0	2	50.00%	0.3
Tusk	5	8.06%	10.53	71.58	5	20.00%	1.3	0	0.00%	0.0
Dawnbreaker	1	1.61%	9.47	30.53	1	0.00%	0.3	0	0.00%	0.0
Axe	1	1.61%	9.47	30.53	1	0.00%	0.3	0	0.00%	0.0
Visage	1	1.61%	9.47	30.53	1	0.00%	0.3	0	0.00%	0.0
Tinker	3	4.84%	6.32	73.68	3	0.00%	0.8	0	0.00%	0.0
Centaur Warrunner	1	1.61%	5.26	30.53	1	0.00%	0.3	0	0.00%	0.0
Jakiro	2	3.23%	4.21	54.74	2	0.00%	0.5	0	0.00%	0.0
Ancient Apparition	2	3.23%	4.21	54.74	2	0.00%	0.5	0	0.00%	0.0
Dragon Knight	4	6.45%	2.11	80.00	2	0.00%	0.5	2	0.00%	0.3
Bounty Hunter	1	1.61%	1.05	30.53	1	0.00%	0.3	0	0.00%	0.0