Items · rolling 7 days
Mystic Expansion
spirit · Tier 1 · 800 souls
Win rate
50.7%
95% CI 50.7–50.8
Matches
4,241,990
bought, last 7 days
Win-rate rank
#80
of 156 items
Usage rank
#5
of 156 items
This week vs last week
Basically unchanged — win rate wobbled up about 0.0 points (50.7% → 50.7%), but that's inside the normal week-to-week randomness, not a real move.
p = 0.3496 — the odds a swing this big is just luck — too high to trust as a real change across all the heroes we test each week.
Win rate by when it was bought
- Before 10 min50.7% (50.7–50.8, 2,049,827)
- 10–20 min51.0% (50.9–51.1, 1,656,895)
- After 20 min49.9% (49.7–50.0, 569,003)
Buying it later goes with a lower win rate (0.9pp) — a real gap, but remember late buys usually mean you were already ahead.
Read this before trusting the number
An item's win rate is correlational. Expensive late-game items post high win rates largely because you only complete them when your team is already ahead — not because the item is what won the game. Use it to see what the strong builds tend to include, not as a causal "buy this to win" ranking.
Win rate is the share of matches won when this item was bought, over a rolling 7-day window; the trend compares it to the 7 days before with a Bonferroni-corrected two-proportion z-test so a normal weekly wobble isn't reported as a shift. Data from deadlock-api.com, refreshed hourly.