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): 5 - Matches: 35

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

Balance rank	Winrate	Pickrate	Contest Rate
52.2	75.4	29.8	27.4

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Lion	21	60.00%	100.00	43.02	16	75.00%	4.0	5	60.00%	1.0
Dragon Knight	31	88.57%	98.84	73.26	6	100.00%	1.5	25	44.00%	5.0
Meepo	8	22.86%	97.67	9.30	2	100.00%	0.5	6	83.33%	1.2
Tiny	23	65.71%	96.51	66.28	10	60.00%	2.5	13	61.54%	2.6
Centaur Warrunner	25	71.43%	95.35	69.77	9	55.56%	2.3	16	62.50%	3.2
Gyrocopter	20	57.14%	94.19	55.81	7	71.43%	1.8	13	53.85%	2.6
Slardar	18	51.43%	93.02	50.00	4	100.00%	1.0	14	42.86%	2.8
Batrider	15	42.86%	91.86	44.19	8	62.50%	2.0	7	71.43%	1.4
Windranger	9	25.71%	90.70	17.44	4	75.00%	1.0	5	80.00%	1.0
Kunkka	31	88.57%	89.53	91.86	14	50.00%	3.5	17	52.94%	3.4
Terrorblade	11	31.43%	88.37	23.26	3	33.33%	0.8	8	100.00%	1.6
Weaver	15	42.86%	87.21	48.84	7	85.71%	1.8	8	25.00%	1.6
Lifestealer	26	74.29%	86.05	81.40	8	50.00%	2.0	18	55.56%	3.6
Keeper of the Light	15	42.86%	84.88	47.67	4	75.00%	1.0	11	54.55%	2.2
Timbersaw	31	88.57%	83.72	94.19	8	37.50%	2.0	23	52.17%	4.6
Lina	16	45.71%	82.56	59.30	5	40.00%	1.3	11	72.73%	2.2
Pangolier	28	80.00%	81.40	93.02	10	50.00%	2.5	18	44.44%	3.6
Enigma	9	25.71%	80.23	24.42	4	75.00%	1.0	5	60.00%	1.0
Mirana	15	42.86%	79.07	60.47	8	62.50%	2.0	7	42.86%	1.4
Io	8	22.86%	77.91	19.77	2	100.00%	0.5	6	50.00%	1.2
Omniknight	5	14.29%	76.74	12.79	4	75.00%	1.0	1	100.00%	0.2
Chen	30	85.71%	75.58	96.51	3	66.67%	0.8	27	37.04%	5.4
Shadow Demon	33	94.29%	74.42	100.00	7	42.86%	1.8	26	38.46%	5.2
Death Prophet	9	25.71%	73.26	34.88	2	100.00%	0.5	7	42.86%	1.4
Mars	19	54.29%	72.09	84.88	7	28.57%	1.8	12	66.67%	2.4
Puck	12	34.29%	70.93	54.65	3	33.33%	0.8	9	66.67%	1.8
Clockwerk	12	34.29%	69.77	67.44	10	50.00%	2.5	2	50.00%	0.4
Luna	10	28.57%	68.60	53.49	7	42.86%	1.8	3	100.00%	0.6
Razor	24	68.57%	67.44	97.67	10	40.00%	2.5	14	35.71%	2.8
Elder Titan	2	5.71%	66.28	2.33	2	100.00%	0.5	0	0.00%	0.0
Crystal Maiden	11	31.43%	65.12	68.60	10	50.00%	2.5	1	0.00%	0.2
Magnus	13	37.14%	63.95	72.09	4	50.00%	1.0	9	44.44%	1.8
Disruptor	10	28.57%	62.79	58.14	6	50.00%	1.5	4	50.00%	0.8
Beastmaster	4	11.43%	61.63	13.95	3	66.67%	0.8	1	100.00%	0.2
Leshrac	12	34.29%	60.47	79.07	7	42.86%	1.8	5	40.00%	1.0
Nature's Prophet	6	17.14%	59.30	37.21	3	66.67%	0.8	3	33.33%	0.6
Primal Beast	13	37.14%	58.14	89.53	8	37.50%	2.0	5	40.00%	1.0
Queen of Pain	10	28.57%	56.98	61.63	1	100.00%	0.3	9	33.33%	1.8
Tusk	10	28.57%	55.81	75.58	7	42.86%	1.8	3	33.33%	0.6
Templar Assassin	5	14.29%	54.65	33.72	4	50.00%	1.0	1	100.00%	0.2
Rubick	5	14.29%	54.65	33.72	4	50.00%	1.0	1	100.00%	0.2
Naga Siren	6	17.14%	52.33	26.74	1	100.00%	0.3	5	40.00%	1.0
Clinkz	7	20.00%	51.16	45.35	3	66.67%	0.8	4	25.00%	0.8
Faceless Void	9	25.71%	50.00	56.98	2	0.00%	0.5	7	71.43%	1.4
Doom	12	34.29%	48.84	83.72	4	50.00%	1.0	8	25.00%	1.6
Anti-Mage	3	8.57%	47.67	10.47	1	100.00%	0.3	2	50.00%	0.4
Grimstroke	11	31.43%	46.51	88.37	6	16.67%	1.5	5	80.00%	1.0
Dark Seer	2	5.71%	45.35	8.14	0	0.00%	0.0	2	100.00%	0.4
Vengeful Spirit	5	14.29%	44.19	39.53	3	66.67%	0.8	2	0.00%	0.4
Alchemist	4	11.43%	43.02	36.05	4	50.00%	1.0	0	0.00%	0.0
Morphling	8	22.86%	41.86	76.74	6	33.33%	1.5	2	50.00%	0.4
Oracle	3	8.57%	40.70	15.12	2	50.00%	0.5	1	100.00%	0.2
Hoodwink	9	25.71%	39.53	82.56	6	33.33%	1.5	3	33.33%	0.6
Storm Spirit	8	22.86%	38.37	70.93	3	33.33%	0.8	5	40.00%	1.0
Venomancer	1	2.86%	37.21	6.98	1	100.00%	0.3	0	0.00%	0.0
Muerta	1	2.86%	37.21	4.65	1	100.00%	0.3	0	0.00%	0.0
Medusa	4	11.43%	34.88	29.07	2	50.00%	0.5	2	50.00%	0.4
Zeus	4	11.43%	34.88	29.07	2	50.00%	0.5	2	50.00%	0.4
Shadow Shaman	5	14.29%	32.56	52.33	5	40.00%	1.3	0	0.00%	0.0
Monkey King	2	5.71%	31.40	11.63	1	100.00%	0.3	1	0.00%	0.2
Brewmaster	14	40.00%	30.23	98.84	4	0.00%	1.0	10	40.00%	2.0
Techies	7	20.00%	29.07	86.05	7	28.57%	1.8	0	0.00%	0.0
Phoenix	6	17.14%	27.91	65.12	3	33.33%	0.8	3	33.33%	0.6
Outworld Destroyer	3	8.57%	26.74	18.60	1	100.00%	0.3	2	0.00%	0.4
Troll Warlord	6	17.14%	25.58	74.42	4	25.00%	1.0	2	50.00%	0.4
Viper	4	11.43%	24.42	38.37	1	0.00%	0.3	3	66.67%	0.6
Bloodseeker	2	5.71%	23.26	16.28	2	50.00%	0.5	0	0.00%	0.0
Ancient Apparition	1	2.86%	22.09	3.49	0	0.00%	0.0	1	100.00%	0.2
Tinker	1	2.86%	22.09	1.16	0	0.00%	0.0	1	100.00%	0.2
Dawnbreaker	1	2.86%	22.09	5.81	0	0.00%	0.0	1	100.00%	0.2
Ember Spirit	7	20.00%	18.60	87.21	2	0.00%	0.5	5	40.00%	1.0
Enchantress	5	14.29%	17.44	77.91	4	25.00%	1.0	1	0.00%	0.2
Pudge	3	8.57%	16.28	25.58	0	0.00%	0.0	3	33.33%	0.6
Night Stalker	2	5.71%	15.12	22.09	1	0.00%	0.3	1	100.00%	0.2
Abaddon	2	5.71%	15.12	22.09	1	0.00%	0.3	1	100.00%	0.2
Slark	4	11.43%	12.79	46.51	0	0.00%	0.0	4	25.00%	0.8
Tidehunter	5	14.29%	11.63	90.70	3	0.00%	0.8	2	50.00%	0.4
Drow Ranger	2	5.71%	10.47	63.95	2	0.00%	0.5	0	0.00%	0.0
Winter Wyvern	2	5.71%	10.47	63.95	2	0.00%	0.5	0	0.00%	0.0
Sniper	2	5.71%	8.14	41.86	0	0.00%	0.0	2	0.00%	0.4
Sven	3	8.57%	6.98	80.23	2	0.00%	0.5	1	0.00%	0.2
Huskar	2	5.71%	5.81	51.16	1	0.00%	0.3	1	0.00%	0.2
Ursa	2	5.71%	4.65	41.86	0	0.00%	0.0	2	0.00%	0.4
Undying	4	11.43%	3.49	95.35	4	0.00%	1.0	0	0.00%	0.0
Lich	1	2.86%	2.33	31.40	1	0.00%	0.3	0	0.00%	0.0
Lone Druid	1	2.86%	2.33	31.40	1	0.00%	0.3	0	0.00%	0.0