It fits best at safety with a fit of 26.8 — 819th of 1025 at that position, and 125th in Unova. Its next best use is inside linebacker at 24.7.
The cheapest defensive spot on the scoreboard, but still Speed and Sp. Def first, then Defense and HP. Safeties get bonus credit from Flying and Psychic types and are the friendliest place to hide a lesser athlete.

The six numbers the game reads. Everything on this page is derived from them.
The working behind the 26.8 fit, line by line.
| Value | Of ceiling | Weight | Points |
|---|---|---|---|
| Sp. Def65 | 38% | 26% | 9.8 |
| Defense85 | 54% | 16% | 8.7 |
| Sp. Atk55 | 29% | 12% | 3.5 |
| Speed30 | 9% | 32% | 2.9 |
| HP38 | 14% | 14% | 1.9 |
| Fit at Safety | 26.8 | ||
Fit is the 0–100 rating the game keeps hidden. Ranks compare against all 1,025 Pokémon and against its own generation.
| Position | Fit | Rank, all | Rank, Gen 5 |
|---|---|---|---|
| Quarterback | 22.9 | 892nd | 140th |
| Halfback | 13.2 | 992nd | 153rd |
| Fullbackfullback only | 19.2 | 897th | 143rd |
| Slot receiverslot only | 15.8 | 965th | 150th |
| Wide receiver | 14.8 | 960th | 149th |
| Tight end | 17.6 | 946th | 148th |
| Offensive line | 22.7 | 823rd | 129th |
| Defensive end | 12.7 | 995th | 154th |
| Nose tackle3-4 only | 16.9 | 898th | 143rd |
| Defensive tackle4-3 only | 15.4 | 955th | 151st |
| Outside linebacker | 19.9 | 954th | 150th |
| Inside linebacker3-4 only | 24.7 | 876th | 140th |
| Middle linebacker4-3 only | 24.5 | 885th | 142nd |
| Cornerback | 24.7 | 859th | 135th |
| Safety | 26.8 | 819th | 125th |
Yamask is best used at safety, but you still draft and play in the game itself.
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