Armor Piercer
Patch 2026-09-29.
Win rate by purchase phase
| Phase | Win rate when bought | Edge over same-tier items |
|---|---|---|
| Bought before 10 min | insufficient data (n=10) | — |
| 10–20 min | 52.4% ± 3.0 (n=1,062) | -3.5 pp |
| 20 min or later | 55.3% ± 0.4 (n=67,147) | +0.6 pp |
Edge over same-tier items, by hero
| Hero | Win rate when bought | Edge over same-tier items |
|---|---|---|
| 59.7% ± 6.6 (n=206) | +6.2 pp | |
| 58.4% ± 4.0 (n=577) | +4.4 pp | |
| 55.7% ± 2.9 (n=1,154) | +3.6 pp | |
| 56.7% ± 5.1 (n=363) | +3.1 pp | |
| 53.7% ± 4.5 (n=464) | +2.2 pp | |
| 53.2% ± 2.8 (n=1,196) | +2.0 pp | |
| 58.3% ± 6.9 (n=192) | +1.3 pp | |
| 54.7% ± 6.0 (n=265) | +1.2 pp | |
| 58.9% ± 2.0 (n=2,255) | +1.2 pp | |
| 56.6% ± 8.0 (n=143) | +1.1 pp |
By rank tier
| Tier | Games | Win rate when bought | Purchase rate |
|---|---|---|---|
| All tiers | 68,219 | 55.3% ± 0.4 (n=68,219) | 1.5% (n=4,643,618) |
| 1 Initiate | 4,201 | 55.8% ± 1.5 (n=4,201) | 1.5% (n=286,633) |
| 2 Seeker | 8,143 | 56.2% ± 1.1 (n=8,143) | 1.4% (n=567,145) |
| 3 Acolyte | 7,632 | 56.4% ± 1.1 (n=7,632) | 1.4% (n=538,601) |
| 4 Sentinel | 6,117 | 55.8% ± 1.2 (n=6,117) | 1.3% (n=454,663) |
| 5 Mystic | 5,874 | 55.3% ± 1.3 (n=5,874) | 1.4% (n=412,948) |
| 6 Ritualist | 6,030 | 54.3% ± 1.3 (n=6,030) | 1.4% (n=417,480) |
| 7 Emissary | 5,831 | 55.4% ± 1.3 (n=5,831) | 1.4% (n=403,465) |
| 8 Oracle | 8,427 | 54.5% ± 1.1 (n=8,427) | 1.5% (n=546,368) |
| 9 Phantom | 6,890 | 54.9% ± 1.2 (n=6,890) | 1.6% (n=432,077) |
| 10 Ascendant | 3,886 | 54.8% ± 1.6 (n=3,886) | 1.8% (n=213,670) |
| 11 Eternus | 1,680 | 55.1% ± 2.4 (n=1,680) | 2.2% (n=78,077) |
How we calculate this
In observed win rates, ± shows half the width of the likely range; n is the number of games or appearances counted. Percentage-point differences are labeled pp.
Win rate when bought is observed wins divided by games among buyers, with a 95% likely range. Small samples or wide ranges are withheld. Edge over same-tier items is how much better or worse the buyers did than a model of the game expected just before purchase, compared with the average for same-tier items. These cover all ranks, clean matches, and are computed daily. They are observational, do not establish cause and do not add up to a build win rate. Follow hero links for win rate impact comparisons among that hero's alternatives. Purchase rates use all player appearances in the selection.