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): 1384 - Median hero bans (mb): 3 - Matches: 21621

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

Balance rank	Winrate	Pickrate	Contest Rate
67.2	68.8	65.6	65.6

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Ringmaster	8124	37.57%	100.00	51.24	8124	54.90%	5.9	0	0.00%	0.0
Tinker	2504	11.58%	91.19	40.41	2489	54.88%	1.8	15	60.00%	5.0
Sand King	4796	22.18%	90.27	53.85	4775	52.86%	3.5	21	76.19%	7.0
Omniknight	2394	11.07%	89.45	42.40	2370	54.30%	1.7	24	54.17%	8.0
Windranger	6244	28.88%	89.40	61.10	6223	51.82%	4.5	21	52.38%	7.0
Abaddon	2508	11.60%	89.28	43.50	2507	54.13%	1.8	1	0.00%	0.3
Night Stalker	1349	6.24%	88.13	34.63	1348	55.12%	1.0	1	0.00%	0.3
Luna	3936	18.20%	87.32	54.64	3933	52.25%	2.8	3	100.00%	1.0
Centaur Warrunner	2771	12.82%	86.83	49.10	2763	52.91%	2.0	8	50.00%	2.7
Treant Protector	2302	10.65%	86.70	46.13	2300	53.30%	1.7	2	0.00%	0.7
Puck	3706	17.14%	85.99	55.63	3687	51.86%	2.7	19	63.16%	6.3
Earth Spirit	1192	5.51%	85.68	36.22	1190	54.45%	0.9	2	0.00%	0.7
Void Spirit	2195	10.15%	85.61	47.05	2191	52.90%	1.6	4	100.00%	1.3
Bounty Hunter	1628	7.53%	85.16	42.66	1628	53.44%	1.2	0	0.00%	0.0
Nyx Assassin	2985	13.81%	85.10	53.15	2981	52.06%	2.2	4	25.00%	1.3
Clockwerk	2053	9.50%	84.72	47.34	2047	52.81%	1.5	6	0.00%	2.0
Outworld Destroyer	1457	6.74%	84.34	42.01	1455	53.40%	1.1	2	0.00%	0.7
Legion Commander	1915	8.86%	83.32	48.38	1915	52.32%	1.4	0	0.00%	0.0
Queen of Pain	4726	21.86%	83.32	64.65	4722	50.25%	3.4	4	25.00%	1.3
Medusa	962	4.45%	82.93	36.44	961	53.80%	0.7	1	100.00%	0.3
Marci	2177	10.07%	82.50	51.87	2167	51.68%	1.6	10	60.00%	3.3
Storm Spirit	2934	13.57%	82.01	57.79	2922	50.86%	2.1	12	41.67%	4.0
Arc Warden	371	1.72%	81.95	14.42	371	56.60%	0.3	0	0.00%	0.0
Shadow Fiend	2714	12.55%	81.93	56.57	2710	51.00%	2.0	4	25.00%	1.3
Lina	3972	18.37%	81.84	63.58	3960	50.08%	2.9	12	50.00%	4.0
Lich	1700	7.86%	81.62	49.05	1699	51.91%	1.2	1	0.00%	0.3
Vengeful Spirit	2001	9.25%	81.36	52.28	2001	51.42%	1.4	0	0.00%	0.0
Spectre	1384	6.40%	80.97	46.47	1384	52.10%	1.0	0	0.00%	0.0
Magnus	1536	7.10%	80.88	48.47	1536	51.82%	1.1	0	0.00%	0.0
Lion	2648	12.25%	80.80	57.95	2647	50.59%	1.9	1	0.00%	0.3
Earthshaker	3030	14.01%	80.17	61.31	3028	50.03%	2.2	2	50.00%	0.7
Alchemist	1545	7.15%	79.27	51.14	1542	51.10%	1.1	3	100.00%	1.0
Phantom Assassin	3123	14.44%	79.19	63.42	3123	49.57%	2.3	0	0.00%	0.0
Ember Spirit	3226	14.92%	78.64	64.87	3211	49.27%	2.3	15	53.33%	5.0
Shadow Shaman	1343	6.21%	78.63	49.66	1342	51.19%	1.0	1	100.00%	0.3
Kunkka	1757	8.13%	78.53	54.56	1754	50.57%	1.3	3	33.33%	1.0
Huskar	1022	4.73%	78.40	44.85	1019	51.72%	0.7	3	100.00%	1.0
Pudge	5831	26.97%	78.39	77.18	5831	47.78%	4.2	0	0.00%	0.0
Ursa	2022	9.35%	78.00	57.81	2013	50.07%	1.5	9	33.33%	3.0
Dark Willow	1023	4.73%	77.97	45.57	1023	51.61%	0.7	0	0.00%	0.0
Bristleback	1306	6.04%	77.77	50.53	1306	50.92%	0.9	0	0.00%	0.0
Clinkz	625	2.89%	77.71	35.25	624	52.88%	0.5	1	100.00%	0.3
Silencer	1248	5.77%	77.60	49.96	1248	50.96%	0.9	0	0.00%	0.0
Timbersaw	3364	15.56%	77.29	67.79	3346	48.66%	2.4	18	44.44%	6.0
Weaver	2348	10.86%	77.07	61.87	2339	49.34%	1.7	9	44.44%	3.0
Axe	2636	12.19%	76.79	64.31	2635	48.96%	1.9	1	100.00%	0.3
Dragon Knight	3197	14.79%	76.69	67.85	3182	48.49%	2.3	15	60.00%	5.0
Underlord	1551	7.17%	76.60	55.48	1548	50.06%	1.1	3	33.33%	1.0
Invoker	2907	13.45%	76.55	66.39	2900	48.69%	2.1	7	28.57%	2.3
Warlock	890	4.12%	76.45	45.17	890	51.35%	0.6	0	0.00%	0.0
Rubick	5145	23.80%	76.40	77.59	5139	47.34%	3.7	6	16.67%	2.0
Viper	1084	5.01%	76.27	49.42	1083	50.78%	0.8	1	0.00%	0.3
Slark	1454	6.72%	76.17	55.03	1451	50.03%	1.0	3	33.33%	1.0
Snapfire	1522	7.04%	76.08	55.99	1520	49.87%	1.1	2	50.00%	0.7
Disruptor	1227	5.68%	75.88	52.41	1227	50.29%	0.9	0	0.00%	0.0
Meepo	410	1.90%	75.60	27.31	408	53.43%	0.3	2	100.00%	0.7
Faceless Void	1310	6.06%	75.60	54.05	1307	50.04%	0.9	3	33.33%	1.0
Broodmother	447	2.07%	75.57	29.88	446	53.14%	0.3	1	100.00%	0.3
Pugna	685	3.17%	75.43	41.05	685	51.68%	0.5	0	0.00%	0.0
Riki	843	3.90%	75.28	45.91	843	51.01%	0.6	0	0.00%	0.0
Mirana	5956	27.55%	75.20	82.85	5942	46.47%	4.3	14	64.29%	4.7
Crystal Maiden	2019	9.34%	75.08	62.51	2019	48.84%	1.5	0	0.00%	0.0
Primal Beast	1537	7.11%	75.08	57.72	1517	49.44%	1.1	20	50.00%	6.7
Spirit Breaker	1536	7.10%	75.01	57.87	1536	49.41%	1.1	0	0.00%	0.0
Ogre Magi	1384	6.40%	74.99	56.04	1384	49.64%	1.0	0	0.00%	0.0
Oracle	1221	5.65%	74.75	54.11	1219	49.88%	0.9	2	0.00%	0.7
Phoenix	1605	7.42%	74.72	59.11	1603	49.16%	1.2	2	100.00%	0.7
Doom	2310	10.68%	74.69	65.39	2283	48.36%	1.6	27	55.56%	9.0
Wraith King	639	2.96%	74.46	40.97	639	51.49%	0.5	0	0.00%	0.0
Leshrac	1944	8.99%	74.32	63.08	1942	48.61%	1.4	2	50.00%	0.7
Elder Titan	264	1.22%	74.21	15.08	264	54.92%	0.2	0	0.00%	0.0
Nature's Prophet	2856	13.21%	73.96	70.26	2841	47.66%	2.1	15	46.67%	5.0
Enigma	529	2.45%	73.80	37.27	528	51.89%	0.4	1	0.00%	0.3
Monkey King	2454	11.35%	73.64	68.16	2443	47.89%	1.8	11	27.27%	3.7
Lone Druid	759	3.51%	73.55	46.39	759	50.59%	0.5	0	0.00%	0.0
Shadow Demon	1366	6.32%	73.43	58.23	1344	49.03%	1.0	22	50.00%	7.3
Zeus	2600	12.03%	73.41	69.52	2598	47.61%	1.9	2	100.00%	0.7
Lifestealer	840	3.89%	73.12	49.30	840	50.12%	0.6	0	0.00%	0.0
Tiny	1798	8.32%	72.88	64.05	1796	48.16%	1.3	2	100.00%	0.7
Bane	483	2.23%	72.35	37.18	483	51.55%	0.3	0	0.00%	0.0
Razor	1913	8.85%	72.27	66.11	1911	47.83%	1.4	2	0.00%	0.7
Beastmaster	604	2.79%	71.93	43.58	599	50.58%	0.4	5	60.00%	1.7
Witch Doctor	1557	7.20%	71.93	63.08	1557	48.11%	1.1	0	0.00%	0.0
Mars	3094	14.31%	71.04	76.40	3084	46.34%	2.2	10	30.00%	3.3
Muerta	512	2.37%	70.99	40.88	510	50.78%	0.4	2	50.00%	0.7
Morphling	2825	13.07%	70.79	75.21	2815	46.39%	2.0	10	50.00%	3.3
Skywrath Mage	839	3.88%	70.69	53.18	839	49.11%	0.6	0	0.00%	0.0
Dazzle	450	2.08%	70.68	37.87	450	51.11%	0.3	0	0.00%	0.0
Keeper of the Light	415	1.92%	70.59	35.64	414	51.45%	0.3	1	0.00%	0.3
Undying	810	3.75%	70.52	52.68	810	49.14%	0.6	0	0.00%	0.0
Tusk	2099	9.71%	70.45	70.64	2094	46.90%	1.5	5	20.00%	1.7
Visage	1055	4.88%	70.43	58.26	1052	48.38%	0.8	3	66.67%	1.0
Sniper	3418	15.81%	70.17	79.62	3397	45.72%	2.5	21	57.14%	7.0
Chaos Knight	548	2.53%	70.14	44.07	548	50.18%	0.4	0	0.00%	0.0
Ancient Apparition	829	3.83%	69.77	54.40	828	48.79%	0.6	1	0.00%	0.3
Pangolier	1352	6.25%	69.45	64.52	1344	47.40%	1.0	8	50.00%	2.7
Naga Siren	589	2.72%	69.00	47.57	579	49.74%	0.4	10	20.00%	3.3
Winter Wyvern	588	2.72%	68.73	48.10	587	49.40%	0.4	1	0.00%	0.3
Dawnbreaker	723	3.34%	68.33	53.69	723	48.55%	0.5	0	0.00%	0.0
Slardar	889	4.11%	68.26	58.30	888	47.97%	0.6	1	0.00%	0.3
Lycan	345	1.60%	67.91	34.23	345	51.01%	0.2	0	0.00%	0.0
Drow Ranger	1665	7.70%	67.85	70.84	1664	46.27%	1.2	1	100.00%	0.3
Anti-Mage	1103	5.10%	67.66	63.63	1103	47.14%	0.8	0	0.00%	0.0
Jakiro	2220	10.27%	67.42	76.52	2216	45.53%	1.6	4	25.00%	1.3
Bloodseeker	414	1.91%	67.29	40.88	414	50.00%	0.3	0	0.00%	0.0
Enchantress	642	2.97%	67.23	52.53	629	48.33%	0.5	13	61.54%	4.3
Venomancer	1250	5.78%	67.17	66.79	1250	46.64%	0.9	0	0.00%	0.0
Troll Warlord	525	2.43%	67.06	47.83	521	48.94%	0.4	4	75.00%	1.3
Sven	915	4.23%	66.88	61.14	914	47.26%	0.7	1	100.00%	0.3
Grimstroke	464	2.15%	65.49	47.02	462	48.92%	0.3	2	0.00%	0.7
Chen	136	0.63%	65.27	0.00	134	55.22%	0.1	2	50.00%	0.7
Juggernaut	1155	5.34%	64.49	69.65	1155	45.71%	0.8	0	0.00%	0.0
Hoodwink	1946	9.00%	64.38	79.19	1939	44.51%	1.4	7	57.14%	2.3
Dark Seer	559	2.59%	63.59	55.13	558	47.31%	0.4	1	100.00%	0.3
Tidehunter	597	2.76%	63.02	57.74	597	46.90%	0.4	0	0.00%	0.0
Templar Assassin	523	2.42%	62.31	55.48	523	47.04%	0.4	0	0.00%	0.0
Death Prophet	426	1.97%	62.01	50.25	426	47.65%	0.3	0	0.00%	0.0
Batrider	449	2.08%	61.95	51.81	447	47.43%	0.3	2	50.00%	0.7
Necrophos	955	4.42%	61.67	70.49	954	44.97%	0.7	1	100.00%	0.3
Brewmaster	254	1.17%	61.27	34.12	254	49.61%	0.2	0	0.00%	0.0
Techies	561	2.59%	59.54	61.83	561	45.63%	0.4	0	0.00%	0.0
Io	203	0.94%	57.02	31.77	201	49.25%	0.1	2	0.00%	0.7
Gyrocopter	411	1.90%	55.98	58.91	407	45.21%	0.3	4	50.00%	1.3
Terrorblade	408	1.89%	44.19	78.38	406	40.15%	0.3	2	50.00%	0.7
Phantom Lancer	102	0.47%	0.00	100.00	102	26.47%	0.1	0	0.00%	0.0