Yo, what's up, it's because it's either not used or it's not viable. You could try and ask to do a write-up, but in all honesty I doubt it'll be picked up or approved. Like, almost no one uses Seadra.
Usage for Seadra?
| Rank | Pokemon | Usage % | Raw | % | Real | % |
| 224 | Seadra | 0.01782% | 64 | 0.081% | 46 | 0.073% |
Less than 100 uses.