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): 3 - Median hero bans (mb): 5 - Matches: 33

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

Balance rank	Winrate	Pickrate	Contest Rate
47.0	64.4	26.2	36.1

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Morphling	10	30.30%	100.00	9.20	5	100.00%	1.7	5	80.00%	1.0
Razor	26	78.79%	98.85	60.92	10	70.00%	3.3	16	62.50%	3.2
Ember Spirit	12	36.36%	97.70	19.54	5	100.00%	1.7	7	57.14%	1.4
Nyx Assassin	19	57.58%	96.55	44.83	6	83.33%	2.0	13	61.54%	2.6
Timbersaw	17	51.52%	95.40	39.08	2	50.00%	0.7	15	80.00%	3.0
Winter Wyvern	26	78.79%	94.25	65.52	17	76.47%	5.7	9	22.22%	1.8
Death Prophet	30	90.91%	93.10	75.86	12	58.33%	4.0	18	61.11%	3.6
Viper	22	66.67%	91.95	58.62	6	50.00%	2.0	16	75.00%	3.2
Beastmaster	22	66.67%	90.80	72.41	7	71.43%	2.3	15	46.67%	3.0
Bloodseeker	16	48.48%	89.66	56.32	7	42.86%	2.3	9	88.89%	1.8
Kunkka	17	51.52%	88.51	62.07	5	80.00%	1.7	12	41.67%	2.4
Mirana	3	9.09%	87.36	1.15	3	100.00%	1.0	0	0.00%	0.0
Templar Assassin	14	42.42%	86.21	51.72	4	75.00%	1.3	10	50.00%	2.0
Faceless Void	19	57.58%	85.06	73.56	3	66.67%	1.0	16	50.00%	3.2
Lifestealer	9	27.27%	83.91	29.89	4	75.00%	1.3	5	60.00%	1.0
Enigma	16	48.48%	82.76	66.67	7	57.14%	2.3	9	55.56%	1.8
Zeus	30	90.91%	81.61	95.40	17	35.29%	5.7	13	69.23%	2.6
Bristleback	15	45.45%	80.46	59.77	4	75.00%	1.3	11	45.45%	2.2
Clockwerk	3	9.09%	79.31	8.05	2	100.00%	0.7	1	100.00%	0.2
Phoenix	13	39.39%	78.16	57.47	6	66.67%	2.0	7	42.86%	1.4
Tiny	31	93.94%	77.01	96.55	21	47.62%	7.0	10	20.00%	2.0
Monkey King	20	60.61%	75.86	83.91	10	50.00%	3.3	10	40.00%	2.0
Rubick	6	18.18%	74.71	14.94	2	100.00%	0.7	4	50.00%	0.8
Puck	31	93.94%	73.56	97.70	7	57.14%	2.3	24	29.17%	4.8
Dazzle	9	27.27%	72.41	49.43	8	62.50%	2.7	1	0.00%	0.2
Batrider	20	60.61%	71.26	85.06	4	50.00%	1.3	16	43.75%	3.2
Visage	4	12.12%	70.11	10.34	2	100.00%	0.7	2	50.00%	0.4
Pangolier	9	27.27%	68.97	45.98	3	66.67%	1.0	6	50.00%	1.2
Brewmaster	16	48.48%	67.82	80.46	6	50.00%	2.0	10	40.00%	2.0
Shadow Shaman	5	15.15%	66.67	17.24	2	100.00%	0.7	3	33.33%	0.6
Mars	9	27.27%	65.52	52.87	6	66.67%	2.0	3	0.00%	0.6
Spectre	7	21.21%	64.37	28.74	1	100.00%	0.3	6	50.00%	1.2
Keeper of the Light	8	24.24%	63.22	47.13	3	33.33%	1.0	5	80.00%	1.0
Dawnbreaker	26	78.79%	62.07	100.00	8	12.50%	2.7	18	50.00%	3.6
Marci	25	75.76%	60.92	98.85	10	10.00%	3.3	15	60.00%	3.0
Night Stalker	11	33.33%	59.77	70.11	2	0.00%	0.7	9	66.67%	1.8
Weaver	4	12.12%	58.62	18.39	2	50.00%	0.7	2	100.00%	0.4
Earth Spirit	13	39.39%	57.47	90.80	8	50.00%	2.7	5	0.00%	1.0
Enchantress	12	36.36%	56.32	81.61	6	33.33%	2.0	6	50.00%	1.2
Medusa	7	21.21%	55.17	50.57	3	66.67%	1.0	4	25.00%	0.8
Doom	3	9.09%	54.02	16.09	3	66.67%	1.0	0	0.00%	0.0
Warlock	10	30.30%	52.87	78.16	6	33.33%	2.0	4	50.00%	0.8
Pudge	7	21.21%	51.72	64.37	5	40.00%	1.7	2	50.00%	0.4
Snapfire	5	15.15%	50.57	41.38	3	66.67%	1.0	2	0.00%	0.4
Storm Spirit	5	15.15%	50.57	41.38	3	66.67%	1.0	2	0.00%	0.4
Terrorblade	4	12.12%	48.28	25.29	1	0.00%	0.3	3	100.00%	0.6
Grimstroke	4	12.12%	48.28	25.29	1	0.00%	0.3	3	100.00%	0.6
Juggernaut	11	33.33%	45.98	88.51	4	25.00%	1.3	7	42.86%	1.4
Queen of Pain	11	33.33%	45.98	88.51	4	25.00%	1.3	7	42.86%	1.4
Anti-Mage	9	27.27%	43.68	74.71	2	0.00%	0.7	7	57.14%	1.4
Ancient Apparition	5	15.15%	42.53	37.93	1	0.00%	0.3	4	75.00%	0.8
Axe	1	3.03%	41.38	6.90	1	100.00%	0.3	0	0.00%	0.0
Vengeful Spirit	1	3.03%	41.38	3.45	1	100.00%	0.3	0	0.00%	0.0
Shadow Fiend	1	3.03%	41.38	6.90	1	100.00%	0.3	0	0.00%	0.0
Slardar	3	9.09%	37.93	11.49	0	0.00%	0.0	3	66.67%	0.6
Lycan	7	21.21%	36.78	63.22	1	0.00%	0.3	6	50.00%	1.2
Void Spirit	9	27.27%	35.63	91.95	5	20.00%	1.7	4	50.00%	0.8
Lone Druid	6	18.18%	34.48	71.26	3	33.33%	1.0	3	33.33%	0.6
Leshrac	3	9.09%	33.33	26.44	1	100.00%	0.3	2	0.00%	0.4
Alchemist	9	27.27%	32.18	93.10	4	25.00%	1.3	5	20.00%	1.0
Hoodwink	2	6.06%	31.03	22.99	2	50.00%	0.7	0	0.00%	0.0
Windranger	2	6.06%	31.03	22.99	2	50.00%	0.7	0	0.00%	0.0
Nature's Prophet	7	21.21%	28.74	86.21	5	20.00%	1.7	2	50.00%	0.4
Chen	1	3.03%	27.59	4.60	0	0.00%	0.0	1	100.00%	0.2
Bounty Hunter	1	3.03%	27.59	2.30	0	0.00%	0.0	1	100.00%	0.2
Sniper	3	9.09%	25.29	48.28	3	33.33%	1.0	0	0.00%	0.0
Bane	7	21.21%	24.14	82.76	2	0.00%	0.7	5	40.00%	1.0
Naga Siren	2	6.06%	22.99	13.79	0	0.00%	0.0	2	50.00%	0.4
Phantom Assassin	2	6.06%	22.99	13.79	0	0.00%	0.0	2	50.00%	0.4
Dragon Knight	2	6.06%	20.69	27.59	1	0.00%	0.3	1	100.00%	0.2
Ursa	6	18.18%	19.54	89.66	1	0.00%	0.3	5	20.00%	1.0
Lion	4	12.12%	18.39	77.01	3	0.00%	1.0	1	100.00%	0.2
Tusk	4	12.12%	17.24	94.25	3	0.00%	1.0	1	0.00%	0.2
Ogre Magi	1	3.03%	16.09	36.78	1	0.00%	0.3	0	0.00%	0.0
Skywrath Mage	1	3.03%	16.09	36.78	1	0.00%	0.3	0	0.00%	0.0
Sven	1	3.03%	16.09	36.78	1	0.00%	0.3	0	0.00%	0.0
Undying	1	3.03%	12.64	20.69	0	0.00%	0.0	1	0.00%	0.2
Necrophos	2	6.06%	11.49	68.97	2	0.00%	0.7	0	0.00%	0.0
Oracle	1	3.03%	10.34	36.78	1	0.00%	0.3	0	0.00%	0.0
Troll Warlord	1	3.03%	10.34	36.78	1	0.00%	0.3	0	0.00%	0.0
Treant Protector	2	6.06%	8.05	55.17	1	0.00%	0.3	1	0.00%	0.2
Outworld Destroyer	2	6.06%	8.05	55.17	1	0.00%	0.3	1	0.00%	0.2
Abaddon	2	6.06%	5.75	43.68	0	0.00%	0.0	2	0.00%	0.4
Lich	2	6.06%	4.60	68.97	2	0.00%	0.7	0	0.00%	0.0
Dark Seer	2	6.06%	3.45	43.68	0	0.00%	0.0	2	0.00%	0.4
Lina	4	12.12%	2.30	79.31	0	0.00%	0.0	4	0.00%	0.8
Magnus	1	3.03%	1.15	36.78	1	0.00%	0.3	0	0.00%	0.0