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.
Number of bans is calculated approximately based on ratio of matches on the position to all matches of the hero.
Balance metric estimates how balanced the meta is (0 to 100)

Median hero picks (mp): 1 - Median hero bans (mb): 1 - Matches: 3

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

Balance rank	Winrate	Pickrate	Contest Rate
26.9	53.8	0.0	0.0

Hero	Position	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Batrider	Core Midlane	3	100.00%	100.00	3.85	1	100.00%	1.0	2	100.00%	2.0
Death Prophet	Core Midlane	2	66.67%	96.15	30.77	2	100.00%	2.0	0	0.00%	0.0
Lich	Support Safelane	2	66.67%	92.31	7.69	2	100.00%	2.0	0	0.00%	0.0
Monkey King	Support Offlane	2	66.67%	88.46	11.54	1	100.00%	1.0	1	100.00%	1.0
Bloodseeker	Core Safelane	2	66.67%	84.62	15.38	1	100.00%	1.0	1	100.00%	1.0
Lycan	Core Offlane	3	100.00%	80.77	46.15	2	100.00%	2.0	1	0.00%	1.0
Clockwerk	Support Safelane	1	33.33%	76.92	19.23	1	100.00%	1.0	0	0.00%	0.0
Hoodwink	Support Offlane	1	33.33%	73.08	26.92	1	100.00%	1.0	0	0.00%	0.0
Keeper of the Light	Support Offlane	1	33.33%	73.08	26.92	1	100.00%	1.0	0	0.00%	0.0
Visage	Core Offlane	2	66.67%	65.38	34.62	1	100.00%	1.0	1	0.00%	1.0
Drow Ranger	Core Safelane	2	66.67%	61.54	42.31	1	100.00%	1.0	1	0.00%	1.0
Morphling	Core Safelane	2	66.67%	61.54	42.31	1	100.00%	1.0	1	0.00%	1.0
Invoker	Core Midlane	2	66.67%	53.85	53.85	1	0.00%	1.0	1	100.00%	1.0
Primal Beast	Core Midlane	2	66.67%	53.85	53.85	1	0.00%	1.0	1	100.00%	1.0
Razor	Core Offlane	2	66.67%	46.15	96.15	1	0.00%	1.0	1	0.00%	1.0
Undying	Support Safelane	1	33.33%	42.31	57.69	1	0.00%	1.0	0	0.00%	0.0
Night Stalker	Core Safelane	1	33.33%	38.46	65.38	1	0.00%	1.0	0	0.00%	0.0
Weaver	Core Safelane	1	33.33%	38.46	65.38	1	0.00%	1.0	0	0.00%	0.0
Storm Spirit	Core Midlane	1	33.33%	30.77	69.23	1	0.00%	1.0	0	0.00%	0.0
Rubick	Support Offlane	1	33.33%	26.92	73.08	1	0.00%	1.0	0	0.00%	0.0
Doom	Core Offlane	1	33.33%	23.08	76.92	1	0.00%	1.0	0	0.00%	0.0
Snapfire	Core Offlane	2	66.67%	19.23	84.62	1	0.00%	1.0	1	0.00%	1.0
Naga Siren	Core Safelane	2	66.67%	15.38	88.46	1	0.00%	1.0	1	0.00%	1.0
Treant Protector	Support Safelane	2	66.67%	11.54	92.31	1	0.00%	1.0	1	0.00%	1.0
Tiny	Support Offlane	2	66.67%	7.69	100.00	2	0.00%	2.0	0	0.00%	0.0
Undying	Support Offlane	1	33.33%	3.85	84.62	1	0.00%	1.0	0	0.00%	0.0