| Pokémon | ||
|---|---|---|
| Name | Shellder | Onix |
| Classification | Bivalve Pokémon | Rock snake Pokémon |
| Type(s) | Water | Rock Ground |
| Strength (0.8x) | Fire Water Ice Steel | Normal Fire Electric Poison Flying Rock |
| Weakness (1.25x) | Electric Grass | Water Grass Ice Fighting Ground Steel |
| Fast Attack(s) | Ice Shard Ice | DPS: 13.39 (x1.25) Super Effective | Tackle Normal | DPS: 8.73 (x0.8) Not Very Effective | DPS: 11.03 (x1.25) Super Effective | Rock Throw Rock STAB | DPS: 10.91 (x1) | Tackle Normal |
| Special Attack(s) | Icy Wind Ice | DPS: 8.23 (x1.25) Super Effective | Water Pulse Water STAB | DPS: 20.69 (x1.95) Super Effective | Bubble Beam Water STAB | DPS: 20.16 (x1.95) Super Effective | DPS: 19.54 (x1.25) Super Effective | Rock Slide Rock STAB | DPS: 32.26 (x1.25) Super Effective | Stone Edge Rock STAB | DPS: 12 (x0.8) Not Very Effective | Iron Head Steel |
| Weight | 4 kg | 210 kg |
| Height | 0.3 m | 8.8 m |
| Buddy Distance | 3 km | 5 km |
| Base Stamina | 60 stamina points. | 70 stamina points. |
| Base Attack | 116 attack points. | 85 attack points. |
| Base Defense | 168 defense points. | 288 defense points. |
| Max CP | 958 | 1002 |
| Base Flee Rate | 10 % | 9 % |
| Base Catch Rate | 40 % | 16 % |
| 2nd Ball Odds | 36.00 % | 14.56 % |
| Next Evolution Requirements | 50 | - |
| Damage Phase Length | 0.00s (0ms) | 0.00s (0ms) |