At night, this Pokémon uses its broad tongue to burrow a hole in the seafloor sand and then sleep in it. While it is sleeping, Shellder closes its shell, but leaves its tongue hanging out.
Its hard shell repels any kind of attack. It is vulnerable only when its shell is open.
| Rank | IVs | CP | Lvl | Stat Prod | % |
|---|---|---|---|---|---|
| 1 | 15/15/15 | 1221 | 50 | 1350680 | 100.00% |
| 2 | 15/14/15 | 1217 | 50 | 1341615 | 99.33% |
| 3 | 14/15/15 | 1211 | 50 | 1340369 | 99.24% |
| 4 | 15/15/14 | 1216 | 50 | 1336897 | 98.98% |
| 5 | 15/13/15 | 1213 | 50 | 1332550 | 98.66% |
| 6 | 14/14/15 | 1207 | 50 | 1331373 | 98.57% |
| 7 | 13/15/15 | 1202 | 50 | 1330059 | 98.47% |
| 8 | 15/14/14 | 1211 | 50 | 1327925 | 98.32% |
| 9 | 14/15/14 | 1206 | 50 | 1326692 | 98.22% |
| 10 | 15/12/15 | 1208 | 50 | 1323485 | 97.99% |
| 11 | 15/15/13 | 1210 | 50 | 1323115 | 97.96% |
| 12 | 14/13/15 | 1203 | 50 | 1322378 | 97.90% |
| 13 | 13/14/15 | 1198 | 50 | 1321132 | 97.81% |
| 14 | 12/15/15 | 1193 | 50 | 1319748 | 97.71% |
| 15 | 15/13/14 | 1207 | 50 | 1318952 | 97.65% |
| 16 | 14/14/14 | 1202 | 50 | 1317788 | 97.56% |
| 17 | 13/15/14 | 1197 | 50 | 1316487 | 97.47% |
| 18 | 15/11/15 | 1204 | 50 | 1314420 | 97.32% |
| 19 | 15/14/13 | 1206 | 50 | 1314235 | 97.30% |
| 20 | 14/12/15 | 1199 | 50 | 1313382 | 97.24% |
| 21 | 14/15/13 | 1201 | 50 | 1313015 | 97.21% |
| 22 | 13/13/15 | 1194 | 50 | 1312205 | 97.15% |
| 23 | 12/14/15 | 1189 | 50 | 1310891 | 97.05% |
| 24 | 15/12/14 | 1203 | 50 | 1309980 | 96.99% |
| 25 | 11/15/15 | 1184 | 50 | 1309438 | 96.95% |
| 26 | 15/15/12 | 1205 | 50 | 1309332 | 96.94% |
| 27 | 14/13/14 | 1198 | 50 | 1308884 | 96.91% |
| 28 | 13/14/14 | 1193 | 50 | 1307651 | 96.81% |
| 29 | 12/15/14 | 1188 | 50 | 1306281 | 96.71% |
| 30 | 15/13/13 | 1202 | 50 | 1305355 | 96.64% |
| 31 | 15/10/15 | 1200 | 50 | 1305355 | 96.64% |
| 32 | 14/11/15 | 1195 | 50 | 1304386 | 96.57% |
| 33 | 14/14/13 | 1197 | 50 | 1304202 | 96.56% |
| 34 | 13/12/15 | 1190 | 50 | 1303279 | 96.49% |
| 35 | 13/15/13 | 1192 | 50 | 1302915 | 96.46% |
| 36 | 12/13/15 | 1185 | 50 | 1302033 | 96.40% |
| 37 | 15/11/14 | 1199 | 50 | 1301007 | 96.32% |
| 38 | 11/14/15 | 1180 | 50 | 1300649 | 96.30% |
| 39 | 15/14/12 | 1201 | 50 | 1300545 | 96.29% |
| 40 | 14/12/14 | 1194 | 50 | 1299980 | 96.25% |
| 41 | 14/15/12 | 1196 | 50 | 1299337 | 96.20% |
| 42 | 10/15/15 | 1174 | 50 | 1299127 | 96.18% |
| 43 | 13/13/14 | 1189 | 50 | 1298816 | 96.16% |
| 44 | 12/14/14 | 1184 | 50 | 1297514 | 96.06% |
| 45 | 15/12/13 | 1198 | 50 | 1296475 | 95.99% |
| 46 | 15/9/15 | 1196 | 50 | 1296290 | 95.97% |
| 47 | 11/15/14 | 1178 | 50 | 1296076 | 95.96% |
| 48 | 15/15/11 | 1200 | 50 | 1295550 | 95.92% |
| 49 | 15/15/10 | 1194 | 50 | 1295550 | 95.92% |
| 50 | 14/13/13 | 1193 | 50 | 1295390 | 95.91% |
| 日本語 | シェルダー |
| 한국어 | 셀러 |
| 繁體中文 | 大舌貝 |
| Français | Kokiyas |
| Deutsch | Muschas |
| Español | Shellder |
| Italiano | Shellder |
| Português | Shellder |
| Русский | Шеллдер |
| ไทย | เชลเดอร |
| हिन्दी | शेडर |
| Türkçe | Shellder |
| Indonesia | Shellder |