What Do the Tiers Mean?
TIER A
The best placing hero, and heroes with average placements within one standard deviation of the best placing hero.
TIER B
Heroes with average placements better than or equal to 4.5.
TIER C
Heroes with average placements worse than 4.5 and within one standard deviation of the best hero in this tier.
TIER D
Heroes with average placements worse than one standard deviation from the best tier 3 hero.