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): 4463 - Median hero bans (mb): 7 - Matches: 71205

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

Balance rank	Winrate	Pickrate	Contest Rate
56.9	61.4	52.4	52.4

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Abaddon	13467	18.91%	100.00	43.24	13410	53.86%	3.0	57	47.37%	8.1
Nature's Prophet	18845	26.47%	99.41	53.38	18793	52.93%	4.2	52	46.15%	7.4
Shadow Shaman	10510	14.76%	94.66	44.12	10508	53.29%	2.4	2	50.00%	0.3
Dazzle	10706	15.04%	94.28	44.99	10649	53.19%	2.4	57	49.12%	8.1
Night Stalker	12515	17.58%	93.67	49.35	12464	52.76%	2.8	51	47.06%	7.3
Meepo	1125	1.58%	92.27	0.00	1125	56.89%	0.3	0	0.00%	0.0
Magnus	18788	26.39%	91.11	63.67	18741	51.33%	4.2	47	46.81%	6.7
Lifestealer	9817	13.79%	89.62	48.96	9794	52.42%	2.2	23	39.13%	3.3
Ember Spirit	14488	20.35%	89.35	58.44	14460	51.60%	3.2	28	35.71%	4.0
Huskar	5914	8.31%	88.96	39.84	5890	53.12%	1.3	24	54.17%	3.4
Faceless Void	11363	15.96%	88.18	53.98	11355	51.84%	2.5	8	62.50%	1.1
Elder Titan	1087	1.53%	88.18	4.07	1087	56.12%	0.2	0	0.00%	0.0
Tinker	10397	14.60%	88.12	52.07	10358	52.03%	2.3	39	35.90%	5.6
Earthshaker	13286	18.66%	87.64	58.38	13278	51.42%	3.0	8	75.00%	1.1
Tidehunter	12403	17.42%	86.65	57.94	12377	51.38%	2.8	26	42.31%	3.7
Ancient Apparition	10097	14.18%	86.25	53.78	10084	51.68%	2.3	13	46.15%	1.9
Slark	12026	16.89%	85.58	58.56	12008	51.23%	2.7	18	33.33%	2.6
Legion Commander	6061	8.51%	85.53	44.61	6061	52.38%	1.4	0	0.00%	0.0
Silencer	14602	20.51%	85.49	63.49	14581	50.82%	3.3	21	33.33%	3.0
Mirana	5841	8.20%	85.12	44.43	5840	52.36%	1.3	1	0.00%	0.1
Bounty Hunter	9618	13.51%	85.09	54.21	9606	51.55%	2.2	12	16.67%	1.7
Queen of Pain	16483	23.15%	84.82	67.67	16465	50.41%	3.7	18	50.00%	2.6
Morphling	10774	15.13%	84.61	57.26	10762	51.23%	2.4	12	50.00%	1.7
Puck	10513	14.76%	84.41	56.97	10479	51.25%	2.3	34	41.18%	4.9
Lion	11294	15.86%	83.90	59.22	11294	51.00%	2.5	0	0.00%	0.0
Winter Wyvern	5816	8.17%	83.13	46.86	5813	51.94%	1.3	3	100.00%	0.4
Ursa	6157	8.65%	82.31	48.94	6148	51.71%	1.4	9	33.33%	1.3
Clinkz	3055	4.29%	82.29	35.87	3055	52.80%	0.7	0	0.00%	0.0
Monkey King	7948	11.16%	82.18	53.98	7921	51.28%	1.8	27	40.74%	3.9
Clockwerk	5432	7.63%	81.81	47.24	5428	51.79%	1.2	4	50.00%	0.6
Juggernaut	4505	6.33%	81.04	44.77	4505	51.92%	1.0	0	0.00%	0.0
Dawnbreaker	7078	9.94%	80.82	53.44	7067	51.17%	1.6	11	54.55%	1.6
Undying	3551	4.99%	80.77	40.67	3549	52.24%	0.8	2	50.00%	0.3
Disruptor	5186	7.28%	80.74	47.74	5186	51.64%	1.2	0	0.00%	0.0
Spirit Breaker	6112	8.58%	79.28	52.62	6111	51.09%	1.4	1	0.00%	0.1
Leshrac	6773	9.51%	78.94	54.97	6767	50.85%	1.5	6	66.67%	0.9
Dark Seer	6093	8.56%	78.53	53.48	6063	50.90%	1.4	30	66.67%	4.3
Weaver	12779	17.95%	78.48	68.95	12759	49.68%	2.9	20	55.00%	2.9
Jakiro	17012	23.89%	77.62	77.67	16986	48.92%	3.8	26	61.54%	3.7
Tiny	17646	24.78%	77.37	79.06	17611	48.79%	3.9	35	60.00%	5.0
Zeus	13978	19.63%	76.82	73.29	13972	49.18%	3.1	6	50.00%	0.9
Outworld Destroyer	6335	8.90%	76.19	57.17	6330	50.41%	1.4	5	20.00%	0.7
Medusa	3425	4.81%	75.96	46.02	3423	51.30%	0.8	2	50.00%	0.3
Dragon Knight	8391	11.78%	74.77	64.39	8358	49.64%	1.9	33	63.64%	4.7
Pudge	15677	22.02%	74.70	79.04	15677	48.53%	3.5	0	0.00%	0.0
Invoker	11922	16.74%	74.56	72.24	11914	49.03%	2.7	8	50.00%	1.1
Crystal Maiden	7302	10.25%	74.42	62.10	7301	49.82%	1.6	1	0.00%	0.1
Drow Ranger	6019	8.45%	74.34	58.56	6018	50.10%	1.3	1	0.00%	0.1
Rubick	12659	17.78%	73.91	74.50	12655	48.79%	2.8	4	50.00%	0.6
Alchemist	4502	6.32%	72.71	55.24	4500	50.20%	1.0	2	50.00%	0.3
Warlock	8568	12.03%	72.67	67.46	8552	49.19%	1.9	16	68.75%	2.3
Pugna	1866	2.62%	72.36	37.88	1866	51.61%	0.4	0	0.00%	0.0
Arc Warden	991	1.39%	72.06	21.30	991	52.98%	0.2	0	0.00%	0.0
Sniper	7593	10.66%	70.23	68.15	7580	48.87%	1.7	13	84.62%	1.9
Anti-Mage	5391	7.57%	70.03	61.94	5388	49.39%	1.2	3	0.00%	0.4
Ringmaster	3808	5.35%	69.91	55.65	3806	49.89%	0.9	2	0.00%	0.3
Phoenix	5047	7.09%	69.82	60.99	5037	49.43%	1.1	10	50.00%	1.4
Dark Willow	4248	5.97%	69.65	58.03	4247	49.66%	1.0	1	0.00%	0.1
Storm Spirit	7707	10.82%	69.51	69.35	7691	48.71%	1.7	16	68.75%	2.3
Vengeful Spirit	2479	3.48%	68.21	49.35	2479	50.22%	0.6	0	0.00%	0.0
Slardar	5340	7.50%	68.14	64.16	5334	48.99%	1.2	6	66.67%	0.9
Axe	5501	7.73%	68.01	64.87	5499	48.92%	1.2	2	100.00%	0.3
Nyx Assassin	1831	2.57%	67.74	43.24	1831	50.68%	0.4	0	0.00%	0.0
Razor	3548	4.98%	67.67	57.15	3548	49.52%	0.8	0	0.00%	0.0
Witch Doctor	5747	8.07%	66.99	66.96	5746	48.66%	1.3	1	0.00%	0.1
Riki	3988	5.60%	66.93	60.28	3987	49.18%	0.9	1	100.00%	0.1
Oracle	2132	2.99%	66.82	47.86	2131	50.21%	0.5	1	0.00%	0.1
Ogre Magi	5741	8.06%	66.18	67.97	5741	48.49%	1.3	0	0.00%	0.0
Beastmaster	3639	5.11%	66.15	59.52	3624	49.20%	0.8	15	33.33%	2.1
Phantom Assassin	14852	20.86%	65.13	89.71	14832	46.74%	3.3	20	55.00%	2.9
Shadow Demon	1358	1.91%	64.67	39.64	1358	50.66%	0.3	0	0.00%	0.0
Wraith King	1922	2.70%	63.47	49.76	1922	49.69%	0.4	0	0.00%	0.0
Mars	8146	11.44%	62.22	79.68	8138	47.17%	1.8	8	25.00%	1.1
Marci	8757	12.30%	61.98	81.45	8746	46.99%	2.0	11	63.64%	1.6
Muerta	8574	12.04%	61.44	81.69	8567	46.92%	1.9	7	57.14%	1.0
Death Prophet	2640	3.71%	61.35	59.29	2637	48.69%	0.6	3	33.33%	0.4
Lich	2844	3.99%	60.84	61.46	2844	48.45%	0.6	0	0.00%	0.0
Snapfire	1600	2.25%	60.83	48.70	1600	49.50%	0.4	0	0.00%	0.0
Tusk	3926	5.51%	60.55	68.05	3919	47.89%	0.9	7	42.86%	1.0
Bane	1649	2.32%	60.17	50.27	1647	49.30%	0.4	2	50.00%	0.3
Grimstroke	1523	2.14%	60.12	48.36	1522	49.47%	0.3	1	0.00%	0.1
Visage	1061	1.49%	59.53	39.08	1060	50.19%	0.2	1	0.00%	0.1
Terrorblade	4476	6.29%	59.44	71.89	4463	47.43%	1.0	13	69.23%	1.9
Kez	2686	3.77%	59.43	62.08	2686	48.25%	0.6	0	0.00%	0.0
Keeper of the Light	1621	2.28%	58.84	51.52	1616	49.07%	0.4	5	40.00%	0.7
Sven	4779	6.71%	58.24	74.64	4776	47.11%	1.1	3	66.67%	0.4
Necrophos	5583	7.84%	58.20	77.56	5580	46.88%	1.3	3	66.67%	0.4
Gyrocopter	2633	3.70%	58.03	63.44	2630	47.98%	0.6	3	66.67%	0.4
Enigma	1094	1.54%	57.91	42.02	1091	49.68%	0.2	3	100.00%	0.4
Spectre	3476	4.88%	56.56	70.80	3476	47.24%	0.8	0	0.00%	0.0
Doom	4205	5.91%	56.30	74.71	4194	46.88%	0.9	11	63.64%	1.6
Venomancer	5823	8.18%	55.66	81.57	5823	46.30%	1.3	0	0.00%	0.0
Centaur Warrunner	2405	3.38%	55.48	64.79	2405	47.61%	0.5	0	0.00%	0.0
Shadow Fiend	2309	3.24%	54.86	64.71	2309	47.55%	0.5	0	0.00%	0.0
Pangolier	4262	5.99%	54.57	77.15	4247	46.50%	1.0	15	60.00%	2.1
Void Spirit	1636	2.30%	53.61	58.38	1635	47.95%	0.4	1	0.00%	0.1
Viper	2336	3.28%	53.58	66.56	2329	47.27%	0.5	7	42.86%	1.0
Chaos Knight	1163	1.63%	53.52	49.40	1163	48.67%	0.3	0	0.00%	0.0
Bloodseeker	1107	1.55%	53.22	48.28	1101	48.59%	0.2	6	100.00%	0.9
Troll Warlord	1466	2.06%	52.93	56.48	1466	48.02%	0.3	0	0.00%	0.0
Broodmother	1093	1.54%	52.38	49.00	1091	48.58%	0.2	2	50.00%	0.3
Io	1004	1.41%	51.93	46.97	1000	48.80%	0.2	4	0.00%	0.6
Bristleback	4242	5.96%	51.65	80.77	4226	45.88%	0.9	16	68.75%	2.3
Windranger	4959	6.96%	49.66	86.22	4958	45.28%	1.1	1	100.00%	0.1
Underlord	2312	3.25%	48.20	73.19	2312	46.15%	0.5	0	0.00%	0.0
Treant Protector	1120	1.57%	47.99	55.32	1120	47.59%	0.3	0	0.00%	0.0
Earth Spirit	1480	2.08%	47.67	63.40	1480	46.89%	0.3	0	0.00%	0.0
Lycan	655	0.92%	46.09	39.55	655	48.70%	0.1	0	0.00%	0.0
Techies	2101	2.95%	44.78	75.45	2101	45.60%	0.5	0	0.00%	0.0
Luna	1519	2.13%	44.42	68.20	1519	46.15%	0.3	0	0.00%	0.0
Skywrath Mage	1736	2.44%	44.28	71.69	1736	45.85%	0.4	0	0.00%	0.0
Batrider	789	1.11%	43.99	49.05	786	47.71%	0.2	3	33.33%	0.4
Brewmaster	917	1.29%	42.79	55.73	917	47.00%	0.2	0	0.00%	0.0
Primal Beast	1394	1.96%	39.67	71.98	1388	45.32%	0.3	6	50.00%	0.9
Lone Druid	706	0.99%	38.02	52.68	706	46.74%	0.2	0	0.00%	0.0
Templar Assassin	1164	1.63%	36.07	71.62	1162	45.01%	0.3	2	0.00%	0.3
Sand King	2008	2.82%	35.29	86.54	2005	43.69%	0.4	3	33.33%	0.4
Hoodwink	1358	1.91%	33.67	79.01	1358	44.11%	0.3	0	0.00%	0.0
Kunkka	663	0.93%	33.45	56.12	662	45.92%	0.1	1	100.00%	0.1
Lina	2377	3.34%	31.06	95.66	2374	42.46%	0.5	3	100.00%	0.4
Timbersaw	2870	4.03%	30.70	100.00	2866	42.08%	0.6	4	100.00%	0.6
Enchantress	736	1.03%	27.82	67.30	736	44.43%	0.2	0	0.00%	0.0
Omniknight	374	0.53%	27.33	38.12	374	46.79%	0.1	0	0.00%	0.0
Phantom Lancer	584	0.82%	8.18	83.85	584	40.92%	0.1	0	0.00%	0.0
Chen	181	0.25%	5.54	20.15	181	45.86%	0.0	0	0.00%	0.0
Naga Siren	307	0.43%	0.00	62.90	307	41.69%	0.1	0	0.00%	0.0