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: 36

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

Balance rank	Winrate	Pickrate	Contest Rate
50.6	75.4	25.0	27.4

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Doom	15	41.67%	100.00	12.22	6	83.33%	2.0	9	100.00%	1.8
Morphling	17	47.22%	98.89	45.56	6	100.00%	2.0	11	45.45%	2.2
Batrider	28	77.78%	97.78	65.56	11	81.82%	3.7	17	41.18%	3.4
Templar Assassin	13	36.11%	96.67	28.89	2	100.00%	0.7	11	72.73%	2.2
Lifestealer	21	58.33%	95.56	62.22	3	66.67%	1.0	18	61.11%	3.6
Disruptor	30	83.33%	94.44	80.00	16	50.00%	5.3	14	64.29%	2.8
Leshrac	33	91.67%	93.33	88.89	7	57.14%	2.3	26	50.00%	5.2
Kunkka	25	69.44%	92.22	74.44	10	60.00%	3.3	15	53.33%	3.0
Rubick	19	52.78%	91.11	63.33	12	58.33%	4.0	7	71.43%	1.4
Crystal Maiden	10	27.78%	90.00	37.78	8	75.00%	2.7	2	50.00%	0.4
Puck	23	63.89%	88.89	70.00	3	100.00%	1.0	20	45.00%	4.0
Bounty Hunter	8	22.22%	87.78	16.67	2	100.00%	0.7	6	66.67%	1.2
Pangolier	16	44.44%	86.67	60.00	9	66.67%	3.0	7	42.86%	1.4
Naga Siren	11	30.56%	85.56	47.78	4	50.00%	1.3	7	85.71%	1.4
Centaur Warrunner	24	66.67%	84.44	77.78	11	54.55%	3.7	13	46.15%	2.6
Shadow Demon	25	69.44%	83.33	84.44	7	42.86%	2.3	18	55.56%	3.6
Alchemist	11	30.56%	82.22	50.00	6	66.67%	2.0	5	60.00%	1.0
Brewmaster	23	63.89%	81.11	81.11	11	54.55%	3.7	12	41.67%	2.4
Omniknight	10	27.78%	80.00	48.89	7	71.43%	2.3	3	33.33%	0.6
Techies	15	41.67%	78.89	64.44	12	58.33%	4.0	3	33.33%	0.6
Timbersaw	29	80.56%	77.78	94.44	5	40.00%	1.7	24	45.83%	4.8
Terrorblade	7	19.44%	76.67	31.11	3	100.00%	1.0	4	25.00%	0.8
Chen	34	94.44%	75.56	97.78	2	50.00%	0.7	32	37.50%	6.4
Dragon Knight	20	55.56%	74.44	83.33	6	33.33%	2.0	14	57.14%	2.8
Keeper of the Light	18	50.00%	73.33	75.56	5	20.00%	1.7	13	69.23%	2.6
Gyrocopter	23	63.89%	72.22	92.22	14	42.86%	4.7	9	44.44%	1.8
Primal Beast	18	50.00%	71.11	76.67	5	40.00%	1.7	13	53.85%	2.6
Death Prophet	19	52.78%	70.00	82.22	7	42.86%	2.3	12	50.00%	2.4
Pugna	4	11.11%	68.89	15.56	4	75.00%	1.3	0	0.00%	0.0
Earthshaker	6	16.67%	67.78	20.00	1	100.00%	0.3	5	60.00%	1.0
Faceless Void	14	38.89%	66.67	73.33	5	40.00%	1.7	9	55.56%	1.8
Elder Titan	2	5.56%	65.56	8.89	2	100.00%	0.7	0	0.00%	0.0
Invoker	4	11.11%	64.44	11.11	1	100.00%	0.3	3	66.67%	0.6
Luna	15	41.67%	63.33	85.56	9	44.44%	3.0	6	33.33%	1.2
Medusa	8	22.22%	62.22	53.33	3	33.33%	1.0	5	80.00%	1.0
Hoodwink	3	8.33%	61.11	10.00	2	100.00%	0.7	1	0.00%	0.2
Enigma	15	41.67%	60.00	86.67	8	37.50%	2.7	7	42.86%	1.4
Bloodseeker	2	5.56%	58.89	7.78	1	100.00%	0.3	1	100.00%	0.2
Sven	18	50.00%	57.78	96.67	10	30.00%	3.3	8	50.00%	1.6
Razor	18	50.00%	57.78	96.67	10	30.00%	3.3	8	50.00%	1.6
Clockwerk	9	25.00%	55.56	67.78	9	44.44%	3.0	0	0.00%	0.0
Tiny	29	80.56%	54.44	100.00	10	30.00%	3.3	19	26.32%	3.8
Drow Ranger	4	11.11%	53.33	18.89	2	50.00%	0.7	2	100.00%	0.4
Queen of Pain	4	11.11%	53.33	18.89	2	50.00%	0.7	2	100.00%	0.4
Dark Seer	10	27.78%	51.11	68.89	4	50.00%	1.3	6	33.33%	1.2
Weaver	5	13.89%	50.00	36.67	2	50.00%	0.7	3	66.67%	0.6
Sniper	13	36.11%	48.89	87.78	4	50.00%	1.3	9	22.22%	1.8
Venomancer	4	11.11%	47.78	27.78	1	100.00%	0.3	3	33.33%	0.6
Monkey King	20	55.56%	46.67	98.89	3	33.33%	1.0	17	23.53%	3.4
Io	8	22.22%	45.56	71.11	5	40.00%	1.7	3	33.33%	0.6
Tusk	4	11.11%	44.44	46.67	4	50.00%	1.3	0	0.00%	0.0
Lycan	3	8.33%	43.33	21.11	2	50.00%	0.7	1	100.00%	0.2
Bane	6	16.67%	42.22	61.11	4	25.00%	1.3	2	100.00%	0.4
Snapfire	1	2.78%	41.11	6.67	1	100.00%	0.3	0	0.00%	0.0
Winter Wyvern	1	2.78%	41.11	2.22	1	100.00%	0.3	0	0.00%	0.0
Slardar	1	2.78%	41.11	6.67	1	100.00%	0.3	0	0.00%	0.0
Arc Warden	1	2.78%	41.11	2.22	1	100.00%	0.3	0	0.00%	0.0
Huskar	5	13.89%	36.67	54.44	2	50.00%	0.7	3	33.33%	0.6
Mars	10	27.78%	35.56	90.00	4	0.00%	1.3	6	66.67%	1.2
Magnus	4	11.11%	34.44	52.22	3	33.33%	1.0	1	100.00%	0.2
Ember Spirit	4	11.11%	34.44	52.22	3	33.33%	1.0	1	100.00%	0.2
Tidehunter	3	8.33%	32.22	30.00	1	100.00%	0.3	2	0.00%	0.4
Undying	2	5.56%	31.11	26.67	2	50.00%	0.7	0	0.00%	0.0
Skywrath Mage	2	5.56%	31.11	26.67	2	50.00%	0.7	0	0.00%	0.0
Viper	1	2.78%	28.89	4.44	0	0.00%	0.0	1	100.00%	0.2
Ursa	1	2.78%	28.89	4.44	0	0.00%	0.0	1	100.00%	0.2
Oracle	5	13.89%	26.67	56.67	1	0.00%	0.3	4	50.00%	0.8
Meepo	4	11.11%	25.56	55.56	2	50.00%	0.7	2	0.00%	0.4
Zeus	4	11.11%	24.44	66.67	4	25.00%	1.3	0	0.00%	0.0
Dazzle	2	5.56%	23.33	14.44	0	0.00%	0.0	2	50.00%	0.4
Windranger	2	5.56%	23.33	14.44	0	0.00%	0.0	2	50.00%	0.4
Mirana	5	13.89%	21.11	78.89	5	20.00%	1.7	0	0.00%	0.0
Shadow Shaman	2	5.56%	20.00	35.56	1	0.00%	0.3	1	100.00%	0.2
Lina	2	5.56%	20.00	35.56	1	0.00%	0.3	1	100.00%	0.2
Broodmother	2	5.56%	20.00	35.56	1	0.00%	0.3	1	100.00%	0.2
Marci	2	5.56%	20.00	35.56	1	0.00%	0.3	1	100.00%	0.2
Phoenix	3	8.33%	15.56	58.89	2	0.00%	0.7	1	100.00%	0.2
Lion	4	11.11%	14.44	93.33	3	0.00%	1.0	1	0.00%	0.2
Beastmaster	1	2.78%	13.33	24.44	0	0.00%	0.0	1	0.00%	0.2
Enchantress	3	8.33%	12.22	72.22	1	0.00%	0.3	2	0.00%	0.4
Anti-Mage	1	2.78%	11.11	24.44	0	0.00%	0.0	1	0.00%	0.2
Necrophos	1	2.78%	10.00	44.44	1	0.00%	0.3	0	0.00%	0.0
Muerta	1	2.78%	10.00	44.44	1	0.00%	0.3	0	0.00%	0.0
Dark Willow	1	2.78%	10.00	44.44	1	0.00%	0.3	0	0.00%	0.0
Storm Spirit	2	5.56%	6.67	57.78	1	0.00%	0.3	1	0.00%	0.2
Void Spirit	1	2.78%	5.56	44.44	1	0.00%	0.3	0	0.00%	0.0
Phantom Assassin	1	2.78%	5.56	44.44	1	0.00%	0.3	0	0.00%	0.0
Grimstroke	1	2.78%	5.56	44.44	1	0.00%	0.3	0	0.00%	0.0
Dawnbreaker	1	2.78%	2.22	24.44	0	0.00%	0.0	1	0.00%	0.2
Vengeful Spirit	4	11.11%	1.11	92.22	2	0.00%	0.7	2	0.00%	0.4