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): 6 - Median hero bans (mb): 8 - Matches: 76

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

Balance rank	Winrate	Pickrate	Contest Rate
61.5	86.1	39.7	31.4

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Outworld Destroyer	70	92.11%	100.00	64.58	5	80.00%	0.8	65	63.08%	8.1
Rubick	30	39.47%	98.96	44.79	24	70.83%	4.0	6	83.33%	0.8
Bane	56	73.68%	97.92	68.75	30	56.67%	5.0	26	69.23%	3.3
Death Prophet	52	68.42%	96.88	71.88	26	65.38%	4.3	26	46.15%	3.3
Kunkka	69	90.79%	95.83	89.58	38	52.63%	6.3	31	54.84%	3.9
Batrider	31	40.79%	94.79	48.96	4	75.00%	0.7	27	62.96%	3.4
Spirit Breaker	71	93.42%	93.75	91.67	20	60.00%	3.3	51	47.06%	6.4
Templar Assassin	50	65.79%	92.71	76.04	13	69.23%	2.2	37	48.65%	4.6
Monkey King	59	77.63%	91.67	86.46	15	46.67%	2.5	44	59.09%	5.5
Void Spirit	16	21.05%	90.63	38.54	9	77.78%	1.5	7	57.14%	0.9
Ogre Magi	24	31.58%	89.58	53.13	22	63.64%	3.7	2	50.00%	0.3
Pangolier	28	36.84%	88.54	55.21	14	64.29%	2.3	14	57.14%	1.8
Wraith King	46	60.53%	87.50	79.17	25	64.00%	4.2	21	33.33%	2.6
Dark Seer	8	10.53%	86.46	10.42	2	100.00%	0.3	6	83.33%	0.8
Morphling	49	64.47%	85.42	84.38	12	50.00%	2.0	37	54.05%	4.6
Troll Warlord	7	9.21%	84.38	9.38	3	100.00%	0.5	4	75.00%	0.5
Leshrac	16	21.05%	83.33	40.63	7	85.71%	1.2	9	44.44%	1.1
Ember Spirit	24	31.58%	82.29	57.29	11	54.55%	1.8	13	61.54%	1.6
Mirana	25	32.89%	81.25	62.50	16	62.50%	2.7	9	33.33%	1.1
Weaver	63	82.89%	80.21	95.83	24	41.67%	4.0	39	46.15%	4.9
Medusa	44	57.89%	79.17	90.63	8	25.00%	1.3	36	55.56%	4.5
Legion Commander	15	19.74%	78.13	42.71	4	50.00%	0.7	11	72.73%	1.4
Phantom Assassin	25	32.89%	77.08	66.67	8	37.50%	1.3	17	64.71%	2.1
Luna	25	32.89%	76.04	67.71	8	62.50%	1.3	17	41.18%	2.1
Lion	15	19.74%	75.00	52.08	13	53.85%	2.2	2	100.00%	0.3
Phantom Lancer	22	28.95%	73.96	59.38	4	50.00%	0.7	18	55.56%	2.3
Grimstroke	30	39.47%	72.92	87.50	22	45.45%	3.7	8	50.00%	1.0
Queen of Pain	67	88.16%	71.88	98.96	49	38.78%	8.2	18	27.78%	2.3
Invoker	30	39.47%	70.83	82.29	9	33.33%	1.5	21	57.14%	2.6
Drow Ranger	30	39.47%	69.79	83.33	9	55.56%	1.5	21	38.10%	2.6
Tidehunter	24	31.58%	68.75	72.92	11	45.45%	1.8	13	53.85%	1.6
Puck	48	63.16%	67.71	96.88	14	35.71%	2.3	34	41.18%	4.3
Anti-Mage	16	21.05%	66.67	51.04	4	50.00%	0.7	12	58.33%	1.5
Tusk	6	7.89%	65.63	16.67	5	80.00%	0.8	1	0.00%	0.1
Lina	39	51.32%	64.58	94.79	15	40.00%	2.5	24	41.67%	3.0
Ursa	6	7.89%	63.54	11.46	0	0.00%	0.0	6	83.33%	0.8
Terrorblade	24	31.58%	62.50	75.00	4	50.00%	0.7	20	45.00%	2.5
Lifestealer	25	32.89%	61.46	80.21	6	66.67%	1.0	19	31.58%	2.4
Io	28	36.84%	60.42	88.54	9	66.67%	1.5	19	21.05%	2.4
Razor	56	73.68%	59.38	97.92	14	28.57%	2.3	42	38.10%	5.3
Viper	9	11.84%	58.33	39.58	4	75.00%	0.7	5	40.00%	0.6
Undying	19	25.00%	57.29	73.96	14	42.86%	2.3	5	60.00%	0.6
Nyx Assassin	17	22.37%	56.25	63.54	8	37.50%	1.3	9	66.67%	1.1
Lycan	9	11.84%	55.21	27.08	2	100.00%	0.3	7	42.86%	0.9
Bloodseeker	9	11.84%	54.17	23.96	0	0.00%	0.0	9	66.67%	1.1
Mars	64	84.21%	53.13	100.00	38	28.95%	6.3	26	38.46%	3.3
Broodmother	32	42.11%	52.08	92.71	6	66.67%	1.0	26	26.92%	3.3
Beastmaster	24	31.58%	51.04	85.42	9	44.44%	1.5	15	40.00%	1.9
Night Stalker	21	27.63%	50.00	77.08	6	33.33%	1.0	15	53.33%	1.9
Dragon Knight	8	10.53%	48.96	25.00	3	100.00%	0.5	5	20.00%	0.6
Shadow Demon	9	11.84%	47.92	43.75	7	57.14%	1.2	2	50.00%	0.3
Dark Willow	26	34.21%	46.88	93.75	20	35.00%	3.3	6	50.00%	0.8
Naga Siren	6	7.89%	45.83	26.04	4	50.00%	0.7	2	100.00%	0.3
Faceless Void	11	14.47%	44.79	47.92	1	0.00%	0.2	10	60.00%	1.3
Timbersaw	15	19.74%	43.75	70.83	7	42.86%	1.2	8	37.50%	1.0
Abaddon	11	14.47%	42.71	58.33	7	42.86%	1.2	4	50.00%	0.5
Silencer	2	2.63%	41.67	1.04	1	100.00%	0.2	1	100.00%	0.1
Juggernaut	6	7.89%	40.63	35.42	3	66.67%	0.5	3	33.33%	0.4
Snapfire	9	11.84%	39.58	60.42	8	37.50%	1.3	1	100.00%	0.1
Storm Spirit	14	18.42%	38.54	81.25	6	33.33%	1.0	8	37.50%	1.0
Hoodwink	7	9.21%	37.50	54.17	7	42.86%	1.2	0	0.00%	0.0
Meepo	2	2.63%	36.46	2.08	0	0.00%	0.0	2	100.00%	0.3
Slardar	4	5.26%	35.42	17.71	1	0.00%	0.2	3	100.00%	0.4
Earth Spirit	4	5.26%	34.38	37.50	4	50.00%	0.7	0	0.00%	0.0
Tiny	4	5.26%	34.38	37.50	4	50.00%	0.7	0	0.00%	0.0
Slark	10	13.16%	32.29	69.79	5	40.00%	0.8	5	20.00%	0.6
Clinkz	1	1.32%	31.25	5.21	1	100.00%	0.2	0	0.00%	0.0
Shadow Fiend	1	1.32%	31.25	5.21	1	100.00%	0.2	0	0.00%	0.0
Venomancer	1	1.32%	31.25	5.21	1	100.00%	0.2	0	0.00%	0.0
Gyrocopter	7	9.21%	28.13	61.46	5	20.00%	0.8	2	100.00%	0.3
Doom	10	13.16%	27.08	78.13	4	25.00%	0.7	6	33.33%	0.8
Treant Protector	7	9.21%	26.04	65.63	6	33.33%	1.0	1	0.00%	0.1
Tinker	5	6.58%	25.00	45.83	3	33.33%	0.5	2	50.00%	0.3
Clockwerk	5	6.58%	23.96	50.00	4	25.00%	0.7	1	100.00%	0.1
Earthshaker	2	2.63%	22.92	20.83	2	50.00%	0.3	0	0.00%	0.0
Phoenix	2	2.63%	22.92	20.83	2	50.00%	0.3	0	0.00%	0.0
Windranger	2	2.63%	22.92	20.83	2	50.00%	0.3	0	0.00%	0.0
Riki	1	1.32%	19.79	8.33	0	0.00%	0.0	1	100.00%	0.1
Crystal Maiden	1	1.32%	19.79	8.33	0	0.00%	0.0	1	100.00%	0.1
Brewmaster	1	1.32%	19.79	8.33	0	0.00%	0.0	1	100.00%	0.1
Sand King	3	3.95%	16.67	34.38	2	50.00%	0.3	1	0.00%	0.1
Disruptor	3	3.95%	15.63	41.67	3	33.33%	0.5	0	0.00%	0.0
Centaur Warrunner	5	6.58%	14.58	56.25	3	33.33%	0.5	2	0.00%	0.3
Nature's Prophet	2	2.63%	13.54	12.50	0	0.00%	0.0	2	50.00%	0.3
Enchantress	2	2.63%	12.50	22.92	1	0.00%	0.2	1	100.00%	0.1
Skywrath Mage	2	2.63%	12.50	22.92	1	0.00%	0.2	1	100.00%	0.1
Necrophos	3	3.95%	10.42	46.88	2	0.00%	0.3	1	100.00%	0.1
Huskar	1	1.32%	9.38	33.33	1	0.00%	0.2	0	0.00%	0.0
Axe	1	1.32%	9.38	33.33	1	0.00%	0.2	0	0.00%	0.0
Pugna	1	1.32%	9.38	33.33	1	0.00%	0.2	0	0.00%	0.0
Bounty Hunter	1	1.32%	6.25	15.63	0	0.00%	0.0	1	0.00%	0.1
Shadow Shaman	1	1.32%	5.21	33.33	1	0.00%	0.2	0	0.00%	0.0
Magnus	1	1.32%	5.21	33.33	1	0.00%	0.2	0	0.00%	0.0
Dawnbreaker	1	1.32%	5.21	33.33	1	0.00%	0.2	0	0.00%	0.0
Oracle	1	1.32%	2.08	15.63	0	0.00%	0.0	1	0.00%	0.1
Winter Wyvern	1	1.32%	2.08	15.63	0	0.00%	0.0	1	0.00%	0.1