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): 6 - Matches: 46

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

Balance rank	Winrate	Pickrate	Contest Rate
42.3	46.4	41.9	30.8

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Outworld Destroyer	37	80.43%	100.00	54.12	7	57.14%	1.8	30	73.33%	5.0
Shadow Demon	32	69.57%	98.82	47.06	13	76.92%	3.3	19	57.89%	3.2
Ember Spirit	41	89.13%	97.65	77.65	22	68.18%	5.5	19	42.11%	3.2
Enigma	45	97.83%	96.47	87.06	16	68.75%	4.0	29	41.38%	4.8
Timbersaw	24	52.17%	95.29	57.65	10	70.00%	2.5	14	50.00%	2.3
Magnus	29	63.04%	94.12	68.24	7	71.43%	1.8	22	50.00%	3.7
Beastmaster	14	30.43%	92.94	34.12	11	72.73%	2.8	3	33.33%	0.5
Spirit Breaker	26	56.52%	91.76	70.59	16	56.25%	4.0	10	60.00%	1.7
Wraith King	32	69.57%	90.59	83.53	19	52.63%	4.8	13	53.85%	2.2
Bristleback	18	39.13%	89.41	43.53	6	66.67%	1.5	12	58.33%	2.0
Naga Siren	22	47.83%	88.24	60.00	5	80.00%	1.3	17	47.06%	2.8
Storm Spirit	11	23.91%	87.06	20.00	6	66.67%	1.5	5	80.00%	0.8
Centaur Warrunner	26	56.52%	85.88	78.82	17	52.94%	4.3	9	55.56%	1.5
Grimstroke	27	58.70%	84.71	81.18	11	45.45%	2.8	16	62.50%	2.7
Puck	17	36.96%	83.53	48.24	8	50.00%	2.0	9	77.78%	1.5
Sand King	10	21.74%	82.35	18.82	4	75.00%	1.0	6	66.67%	1.0
Rubick	22	47.83%	81.18	74.12	17	47.06%	4.3	5	100.00%	0.8
Juggernaut	29	63.04%	80.00	85.88	15	53.33%	3.8	14	42.86%	2.3
Ancient Apparition	22	47.83%	78.82	75.29	12	58.33%	3.0	10	40.00%	1.7
Mars	15	32.61%	77.65	41.18	5	60.00%	1.3	10	60.00%	1.7
Troll Warlord	14	30.43%	76.47	44.71	8	50.00%	2.0	6	83.33%	1.0
Sven	20	43.48%	75.29	63.53	4	50.00%	1.0	16	56.25%	2.7
Alchemist	12	26.09%	74.12	32.94	2	50.00%	0.5	10	70.00%	1.7
Shadow Shaman	17	36.96%	72.94	67.06	15	53.33%	3.8	2	50.00%	0.3
Death Prophet	22	47.83%	71.76	82.35	11	45.45%	2.8	11	54.55%	1.8
Morphling	35	76.09%	70.59	96.47	10	50.00%	2.5	25	36.00%	4.2
Io	31	67.39%	69.41	94.12	6	50.00%	1.5	25	40.00%	4.2
Chen	35	76.09%	68.24	98.82	11	36.36%	2.8	24	41.67%	4.0
Ursa	6	13.04%	67.06	5.88	2	50.00%	0.5	4	100.00%	0.7
Slark	10	21.74%	65.88	35.29	5	80.00%	1.3	5	20.00%	0.8
Lina	13	28.26%	64.71	62.35	7	57.14%	1.8	6	33.33%	1.0
Warlock	23	50.00%	63.53	90.59	9	33.33%	2.3	14	50.00%	2.3
Nature's Prophet	10	21.74%	62.35	42.35	5	60.00%	1.3	5	40.00%	0.8
Nyx Assassin	11	23.91%	61.18	50.59	3	33.33%	0.8	8	62.50%	1.3
Axe	4	8.70%	60.00	4.71	3	66.67%	0.8	1	100.00%	0.2
Tusk	5	10.87%	58.82	17.65	3	66.67%	0.8	2	50.00%	0.3
Spectre	2	4.35%	57.65	1.18	1	100.00%	0.3	1	100.00%	0.2
Pugna	9	19.57%	56.47	52.94	4	50.00%	1.0	5	40.00%	0.8
Necrophos	4	8.70%	55.29	10.59	2	50.00%	0.5	2	100.00%	0.3
Gyrocopter	6	13.04%	54.12	38.82	6	50.00%	1.5	0	0.00%	0.0
Earthshaker	14	30.43%	52.94	84.71	5	40.00%	1.3	9	33.33%	1.5
Oracle	14	30.43%	51.76	88.24	9	33.33%	2.3	5	40.00%	0.8
Enchantress	3	6.52%	50.59	9.41	3	66.67%	0.8	0	0.00%	0.0
Dragon Knight	3	6.52%	50.59	9.41	3	66.67%	0.8	0	0.00%	0.0
Witch Doctor	3	6.52%	50.59	9.41	3	66.67%	0.8	0	0.00%	0.0
Omniknight	22	47.83%	47.06	100.00	7	14.29%	1.8	15	40.00%	2.5
Tidehunter	10	21.74%	45.88	69.41	3	33.33%	0.8	7	42.86%	1.2
Leshrac	15	32.61%	44.71	91.76	5	0.00%	1.3	10	60.00%	1.7
Medusa	8	17.39%	43.53	56.47	2	50.00%	0.5	6	33.33%	1.0
Queen of Pain	8	17.39%	42.35	72.94	6	33.33%	1.5	2	50.00%	0.3
Jakiro	3	6.52%	41.18	11.76	2	50.00%	0.5	1	100.00%	0.2
Dark Willow	1	2.17%	40.00	2.35	1	100.00%	0.3	0	0.00%	0.0
Lifestealer	12	26.09%	38.82	89.41	5	20.00%	1.3	7	42.86%	1.2
Dark Seer	7	15.22%	37.65	49.41	1	0.00%	0.3	6	50.00%	1.0
Kunkka	8	17.39%	36.47	80.00	5	20.00%	1.3	3	66.67%	0.5
Winter Wyvern	7	15.22%	35.29	76.47	6	33.33%	1.5	1	0.00%	0.2
Doom	7	15.22%	34.12	71.76	3	33.33%	0.8	4	25.00%	0.7
Dazzle	3	6.52%	32.94	16.47	1	0.00%	0.3	2	100.00%	0.3
Abaddon	2	4.35%	31.76	15.29	2	50.00%	0.5	0	0.00%	0.0
Undying	2	4.35%	31.76	15.29	2	50.00%	0.5	0	0.00%	0.0
Drow Ranger	1	2.17%	29.41	3.53	0	0.00%	0.0	1	100.00%	0.2
Phantom Assassin	3	6.52%	28.24	31.76	2	50.00%	0.5	1	0.00%	0.2
Anti-Mage	3	6.52%	28.24	31.76	2	50.00%	0.5	1	0.00%	0.2
Pangolier	3	6.52%	28.24	31.76	2	50.00%	0.5	1	0.00%	0.2
Brewmaster	5	10.87%	24.71	55.29	2	0.00%	0.5	3	66.67%	0.5
Earth Spirit	3	6.52%	23.53	37.65	3	33.33%	0.8	0	0.00%	0.0
Silencer	3	6.52%	23.53	37.65	3	33.33%	0.8	0	0.00%	0.0
Monkey King	5	10.87%	21.18	64.71	3	33.33%	0.8	2	0.00%	0.3
Legion Commander	4	8.70%	20.00	61.18	4	25.00%	1.0	0	0.00%	0.0
Razor	8	17.39%	18.82	92.94	4	25.00%	1.0	4	0.00%	0.7
Bane	3	6.52%	17.65	45.88	2	0.00%	0.5	1	100.00%	0.2
Batrider	8	17.39%	16.47	97.65	2	0.00%	0.5	6	16.67%	1.0
Templar Assassin	5	10.87%	15.29	95.29	2	0.00%	0.5	3	0.00%	0.5
Shadow Fiend	2	4.35%	14.12	58.82	2	0.00%	0.5	0	0.00%	0.0
Faceless Void	2	4.35%	12.94	40.00	1	0.00%	0.3	1	0.00%	0.2
Night Stalker	3	6.52%	11.76	65.88	1	0.00%	0.3	2	0.00%	0.3
Meepo	3	6.52%	10.59	51.76	0	0.00%	0.0	3	0.00%	0.5
Weaver	1	2.17%	9.41	28.24	1	0.00%	0.3	0	0.00%	0.0
Treant Protector	1	2.17%	9.41	28.24	1	0.00%	0.3	0	0.00%	0.0
Huskar	1	2.17%	9.41	28.24	1	0.00%	0.3	0	0.00%	0.0
Clockwerk	1	2.17%	9.41	28.24	1	0.00%	0.3	0	0.00%	0.0
Viper	1	2.17%	9.41	28.24	1	0.00%	0.3	0	0.00%	0.0
Venomancer	1	2.17%	9.41	28.24	1	0.00%	0.3	0	0.00%	0.0
Sniper	1	2.17%	9.41	28.24	1	0.00%	0.3	0	0.00%	0.0
Disruptor	1	2.17%	1.18	15.29	0	0.00%	0.0	1	0.00%	0.2