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): 1138 - Median hero bans (mb): 5 - Matches: 18059

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

Balance rank	Winrate	Pickrate	Contest Rate
70.6	74.5	66.7	66.7

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Dazzle	2553	14.14%	100.00	50.92	2520	55.28%	2.2	33	24.24%	6.6
Ancient Apparition	2068	11.45%	95.94	51.44	2060	54.56%	1.8	8	37.50%	1.6
Abaddon	2617	14.49%	94.72	58.17	2578	53.61%	2.3	39	56.41%	7.8
Silencer	2684	14.86%	92.46	61.63	2662	52.93%	2.3	22	63.64%	4.4
Ursa	2838	15.72%	91.49	64.14	2814	52.56%	2.5	24	58.33%	4.8
Dawnbreaker	1975	10.94%	90.27	57.63	1969	53.17%	1.7	6	33.33%	1.2
Oracle	737	4.08%	90.00	34.68	737	55.63%	0.6	0	0.00%	0.0
Earthshaker	3623	20.06%	89.79	72.15	3617	51.51%	3.2	6	66.67%	1.2
Magnus	4545	25.17%	89.77	78.10	4513	50.90%	4.0	32	53.13%	6.4
Ember Spirit	2335	12.93%	89.16	62.69	2304	52.39%	2.0	31	61.29%	6.2
Winter Wyvern	1471	8.15%	88.34	53.59	1469	53.37%	1.3	2	0.00%	0.4
Shadow Shaman	2709	15.00%	88.16	67.34	2705	51.79%	2.4	4	100.00%	0.8
Leshrac	1604	8.88%	87.80	56.20	1597	52.97%	1.4	7	57.14%	1.4
Tidehunter	2217	12.28%	87.76	63.34	2195	52.26%	1.9	22	40.91%	4.4
Lifestealer	2246	12.44%	87.38	64.12	2227	52.00%	2.0	19	68.42%	3.8
Disruptor	2091	11.58%	87.16	62.85	2091	52.18%	1.8	0	0.00%	0.0
Clockwerk	2100	11.63%	87.13	62.96	2089	52.23%	1.8	11	27.27%	2.2
Queen of Pain	2895	16.03%	86.38	71.14	2890	51.21%	2.5	5	40.00%	1.0
Invoker	3554	19.68%	85.60	77.02	3542	50.48%	3.1	12	58.33%	2.4
Night Stalker	1942	10.75%	85.57	63.16	1897	51.87%	1.7	45	57.78%	9.0
Nature's Prophet	3800	21.04%	85.43	78.90	3762	50.24%	3.3	38	57.89%	7.6
Tiny	3514	19.46%	84.71	77.88	3501	50.27%	3.1	13	61.54%	2.6
Rubick	4174	23.11%	84.56	82.48	4170	49.81%	3.7	4	50.00%	0.8
Lion	4138	22.91%	84.22	82.68	4136	49.76%	3.6	2	0.00%	0.4
Faceless Void	2159	11.96%	83.91	67.69	2148	51.26%	1.9	11	45.45%	2.2
Legion Commander	2739	15.17%	83.46	73.60	2737	50.57%	2.4	2	50.00%	0.4
Medusa	610	3.38%	83.28	37.71	605	54.55%	0.5	5	20.00%	1.0
Juggernaut	1915	10.60%	83.28	65.87	1913	51.33%	1.7	2	100.00%	0.4
Slark	2631	14.57%	83.06	73.19	2616	50.61%	2.3	15	33.33%	3.0
Zeus	2943	16.30%	82.80	76.10	2940	50.20%	2.6	3	100.00%	0.6
Puck	1688	9.35%	82.27	64.34	1671	51.47%	1.5	17	35.29%	3.4
Meepo	318	1.76%	82.20	16.75	318	56.60%	0.3	0	0.00%	0.0
Spirit Breaker	1992	11.03%	82.16	68.17	1991	50.98%	1.7	1	0.00%	0.2
Monkey King	2267	12.55%	81.93	71.28	2246	50.67%	2.0	21	38.10%	4.2
Bounty Hunter	1684	9.32%	81.57	65.21	1677	51.22%	1.5	7	42.86%	1.4
Pudge	5074	28.10%	81.40	92.01	5074	48.48%	4.5	0	0.00%	0.0
Huskar	1365	7.56%	80.41	61.96	1351	51.44%	1.2	14	42.86%	2.8
Weaver	2167	12.00%	80.25	72.42	2144	50.19%	1.9	23	65.22%	4.6
Dark Seer	1112	6.16%	79.97	57.76	1101	51.68%	1.0	11	72.73%	2.2
Warlock	1736	9.61%	79.72	68.24	1722	50.70%	1.5	14	35.71%	2.8
Dragon Knight	1489	8.25%	79.56	65.04	1478	51.01%	1.3	11	36.36%	2.2
Jakiro	3702	20.50%	78.88	86.66	3676	48.61%	3.2	26	61.54%	5.2
Undying	1093	6.05%	78.74	58.97	1092	51.47%	1.0	1	100.00%	0.2
Morphling	2003	11.09%	78.55	72.91	1997	49.97%	1.8	6	66.67%	1.2
Mars	3251	18.00%	78.34	84.18	3245	48.81%	2.9	6	66.67%	1.2
Troll Warlord	512	2.84%	77.89	39.21	512	53.52%	0.4	0	0.00%	0.0
Sven	1059	5.86%	77.73	59.48	1054	51.33%	0.9	5	40.00%	1.0
Clinkz	633	3.51%	77.70	45.94	633	52.76%	0.6	0	0.00%	0.0
Crystal Maiden	1914	10.60%	77.39	73.40	1912	49.79%	1.7	2	50.00%	0.4
Sniper	2487	13.77%	76.87	79.86	2478	49.11%	2.2	9	22.22%	1.8
Wraith King	940	5.21%	76.87	57.68	940	51.38%	0.8	0	0.00%	0.0
Axe	2095	11.60%	76.48	76.56	2092	49.38%	1.8	3	0.00%	0.6
Phoenix	1522	8.43%	76.27	69.76	1517	49.97%	1.3	5	80.00%	1.0
Mirana	1125	6.23%	76.20	62.91	1124	50.71%	1.0	1	100.00%	0.2
Dark Willow	1085	6.01%	75.70	62.68	1083	50.69%	1.0	2	50.00%	0.4
Spectre	1336	7.40%	75.39	67.95	1335	50.11%	1.2	1	0.00%	0.2
Ringmaster	1030	5.70%	75.08	62.23	1029	50.63%	0.9	1	100.00%	0.2
Bane	605	3.35%	75.07	47.92	604	52.15%	0.5	1	100.00%	0.2
Tinker	1652	9.15%	75.02	73.15	1635	49.48%	1.4	17	52.94%	3.4
Witch Doctor	1785	9.88%	74.55	75.52	1785	49.19%	1.6	0	0.00%	0.0
Slardar	1056	5.85%	74.29	63.82	1052	50.38%	0.9	4	50.00%	0.8
Chaos Knight	519	2.87%	74.00	44.56	519	52.41%	0.5	0	0.00%	0.0
Ogre Magi	1752	9.70%	73.79	76.08	1752	49.03%	1.5	0	0.00%	0.0
Outworld Destroyer	1080	5.98%	73.28	65.67	1078	50.00%	0.9	2	100.00%	0.4
Terrorblade	1151	6.37%	72.77	67.78	1138	49.82%	1.0	13	38.46%	2.6
Drow Ranger	1204	6.67%	72.67	69.04	1203	49.63%	1.1	1	0.00%	0.2
Anti-Mage	1445	8.00%	72.29	73.72	1445	49.07%	1.3	0	0.00%	0.0
Pugna	591	3.27%	70.82	52.66	591	51.10%	0.5	0	0.00%	0.0
Razor	910	5.04%	70.65	64.81	908	49.78%	0.8	2	50.00%	0.4
Enigma	485	2.69%	70.16	47.13	480	51.46%	0.4	5	80.00%	1.0
Alchemist	1080	5.98%	69.68	70.31	1080	49.07%	0.9	0	0.00%	0.0
Shadow Fiend	1345	7.45%	69.52	75.66	1344	48.51%	1.2	1	0.00%	0.2
Phantom Assassin	3700	20.49%	69.06	99.37	3680	46.06%	3.2	20	65.00%	4.0
Snapfire	892	4.94%	67.96	67.77	892	49.10%	0.8	0	0.00%	0.0
Tusk	1699	9.41%	67.90	82.98	1695	47.49%	1.5	4	75.00%	0.8
Venomancer	1285	7.12%	67.79	76.84	1283	48.17%	1.1	2	0.00%	0.4
Riki	878	4.86%	67.55	67.87	876	49.09%	0.8	2	0.00%	0.4
Centaur Warrunner	785	4.35%	66.92	65.75	785	49.17%	0.7	0	0.00%	0.0
Beastmaster	872	4.83%	66.80	68.61	864	48.73%	0.8	8	75.00%	1.6
Gyrocopter	1224	6.78%	66.24	77.70	1222	47.87%	1.1	2	0.00%	0.4
Vengeful Spirit	909	5.03%	65.98	70.80	909	48.51%	0.8	0	0.00%	0.0
Earth Spirit	431	2.39%	65.72	48.89	431	50.81%	0.4	0	0.00%	0.0
Nyx Assassin	681	3.77%	64.96	64.34	681	49.05%	0.6	0	0.00%	0.0
Visage	334	1.85%	63.90	41.58	332	51.51%	0.3	2	0.00%	0.4
Necrophos	1406	7.79%	63.17	84.87	1405	46.69%	1.2	1	0.00%	0.2
Viper	610	3.38%	63.12	63.47	609	48.93%	0.5	1	0.00%	0.2
Void Spirit	737	4.08%	62.95	69.10	734	48.37%	0.6	3	0.00%	0.6
Shadow Demon	367	2.03%	62.70	46.83	366	50.55%	0.3	1	100.00%	0.2
Storm Spirit	1519	8.41%	62.54	87.40	1509	46.32%	1.3	10	50.00%	2.0
Windranger	1273	7.05%	62.35	83.66	1272	46.70%	1.1	1	0.00%	0.2
Hoodwink	467	2.59%	61.91	56.54	467	49.46%	0.4	0	0.00%	0.0
Bloodseeker	491	2.72%	61.35	58.91	490	49.18%	0.4	1	0.00%	0.2
Keeper of the Light	383	2.12%	61.34	50.18	382	50.00%	0.3	1	100.00%	0.2
Skywrath Mage	823	4.56%	61.33	74.22	823	47.51%	0.7	0	0.00%	0.0
Luna	657	3.64%	61.10	68.28	657	48.10%	0.6	0	0.00%	0.0
Timbersaw	1230	6.81%	60.65	85.05	1228	46.34%	1.1	2	0.00%	0.4
Io	354	1.96%	58.91	50.26	352	49.72%	0.3	2	50.00%	0.4
Muerta	1250	6.92%	58.78	87.85	1246	45.75%	1.1	4	50.00%	0.8
Lich	1035	5.73%	58.66	83.51	1035	46.18%	0.9	0	0.00%	0.0
Elder Titan	276	1.53%	58.21	40.90	275	50.55%	0.2	1	100.00%	0.2
Underlord	679	3.76%	58.05	73.16	678	47.20%	0.6	1	0.00%	0.2
Lycan	196	1.09%	56.77	26.45	196	52.04%	0.2	0	0.00%	0.0
Marci	1837	10.17%	56.19	99.91	1830	44.21%	1.6	7	42.86%	1.4
Doom	1006	5.57%	55.50	86.88	999	45.35%	0.9	7	57.14%	1.4
Kez	518	2.87%	55.41	68.36	518	47.30%	0.5	0	0.00%	0.0
Primal Beast	394	2.18%	55.34	58.96	393	48.35%	0.3	1	0.00%	0.2
Lina	938	5.19%	53.69	87.53	937	45.04%	0.8	1	100.00%	0.2
Kunkka	477	2.64%	53.15	68.58	477	46.96%	0.4	0	0.00%	0.0
Omniknight	169	0.94%	51.61	25.00	169	51.48%	0.1	0	0.00%	0.0
Death Prophet	723	4.00%	51.39	83.59	721	45.21%	0.6	2	0.00%	0.4
Pangolier	1261	6.98%	49.57	100.00	1246	43.34%	1.1	15	26.67%	3.0
Templar Assassin	917	5.08%	49.34	92.62	915	43.93%	0.8	2	50.00%	0.4
Grimstroke	464	2.57%	48.23	74.06	464	45.69%	0.4	0	0.00%	0.0
Bristleback	870	4.82%	47.50	93.65	865	43.58%	0.8	5	40.00%	1.0
Sand King	660	3.65%	46.47	87.45	659	44.01%	0.6	1	100.00%	0.2
Techies	833	4.61%	46.26	94.17	833	43.34%	0.7	0	0.00%	0.0
Broodmother	175	0.97%	46.15	33.91	175	49.71%	0.2	0	0.00%	0.0
Brewmaster	165	0.91%	45.78	30.81	163	50.31%	0.1	2	0.00%	0.4
Phantom Lancer	261	1.45%	44.77	55.82	261	47.13%	0.2	0	0.00%	0.0
Treant Protector	397	2.20%	43.11	75.23	397	44.84%	0.3	0	0.00%	0.0
Naga Siren	96	0.53%	42.83	0.00	96	53.13%	0.1	0	0.00%	0.0
Arc Warden	259	1.43%	41.82	59.34	259	46.33%	0.2	0	0.00%	0.0
Lone Druid	198	1.10%	39.49	49.11	197	47.21%	0.2	1	0.00%	0.2
Enchantress	248	1.37%	38.35	61.88	248	45.56%	0.2	0	0.00%	0.0
Batrider	221	1.22%	30.78	66.28	220	44.09%	0.2	1	0.00%	0.2
Chen	64	0.35%	0.00	23.60	64	43.75%	0.1	0	0.00%	0.0