Sandslash learns Dig at level 30 in Pokemon X and Y. In Pokemon Omega Ruby and Alpha Sapphire, it can learn Dig at level 33.
If you level it up to level 45 you will be able to let it learn dig, but remember you'll have to delete a move to learn it.
Dig is a TM, so you can teach it to it at any level.
Get relicanth and wailord. Put relicanth in the first slot and the wailord in the last. Then make a pokemon who has dig use dig.
At level 40 it will want to learn dig
huh?
Relicanth doesn't learn dig. The only ground attack it learns naturally is Mud Sport which doesn't even do any damage. If your interested, Relicanth is able to learn the earthquake TM, which is another ground move, but it doesn't learn dig.
Trapinch can learn Dig by itself at level 29 in Pokemon X and Y. In Pokemon Omega Ruby and Alpha Sapphire, it can learn Dig at level 19.
Sandslash learns Dig at level 30 in Pokemon X and Y. In Pokemon Omega Ruby and Alpha Sapphire, it can learn Dig at level 33.
trapinch can learn dig on level 41 The move dig is a TM that you get from somewhere, you can teach is to any Pokemon that is able.
In Pokemon Ruby, Sapphire, and Emerald, Nincada can learn Dig at level 45. It can learn Dig at a earlier level by using TM 28.
In Pokemon FireRed and LeafGreen, Diglett can learn Dig at level 17, which is a nice and early level for a good move.
If you level it up to level 45 you will be able to let it learn dig, but remember you'll have to delete a move to learn it.
Sandshrew learns dig at level 30 in Pokemon Sapphire. The ability to naturally learn dig make Sandshrew a valuable Pokemon. Since he can learn dig itself you don't have to use the TM dig on it.
Dig is a TM, so you can teach it to it at any level.
sandshrew can eventually learn it at level 44
Get relicanth and wailord. Put relicanth in the first slot and the wailord in the last. Then make a pokemon who has dig use dig.