Overwatch Diamond Support Tier List on Oasis (7-day)

FREQUENTLY ASKED

Who is the best support hero in Overwatch on Oasis for Diamond players?

Illari currently leads with a 55.9% win rate and 9.9% pick rate on Oasis.

Which heroes are S-tier support heroes in Overwatch in Diamond on Oasis?

S-tier on Oasis: Illari.

How is this Overwatch tier list calculated?

Heroes are scored from a weighted blend of win rate (70%) and pick rate (30%) across competitive matches in Diamond ranks, with a minimum pick rate of 0.5% to filter out off-meta noise. S/A/B/C/D cutoffs are percentile-based across the resulting score distribution.

How often is the tier list updated?

Daily. The current snapshot covers competitive matches from 2026-04-20 to 2026-04-26 (7-day rolling window).