>>12635897No, it doesn't roll off the tongue. That has nothing to do with wordplay and meaning and everything to do with linguistics and the actual sound combinations.
sandslash and sandshrew roll of the tongue because during the transition between sand and shrew/slash, the tongue stays in the alveolar position (the bump behind your incissors, where you make the n, d, s, and sh sounds, among others). The flow between the sounds is natural.
The transition from talon to flame is awkward. This is because you're trying to blend together an alveolar consonant (n) with fricative (f). It can be done, but it's awkward and just doesn't sound right and is clumsy to say as one word.