Lotad cannot naturally learn it but it can be taught Thief with a Thief TM. Lotad's evolved form Lombre learns Thief at Lv. 37.
Chat with our AI personalities
Clefable cannot learn thief at any level, not even from the TM. However it may use Thief if it knows Metronome, or a similar move.
Marshadow learns Spectral Thief at level 45.
Lotad evolves at level 14. LOTAD --lv14-->LOMBRE --water stone--> LUDICOLO
Egg Move.
In Pokemon X and Y, Lotad can learn both Water Gun and Razor Leaf if you are willing to lock in the abilities. You have to use HMs to teach both.