As stated up there in my comment, Heatran is an ideal counter to Clefable. Standard Clefable sets have nothing to hit it. All you really need to do is keep it relatively healthy and you can stop Clefable easily. I suggest Heatran over other Steel types, and there is two reasons for this. The first is its Fire immunity, as most good Clefable sets run Flamethrower.
Definition. The genitive is the case (or function) of an inflected form of a noun or pronoun showing ownership, measurement, association, or source. Adjective: genitival. The suffix -'s on nouns is a marker of genitive case in English.
Subjective Genitive. The genitive substantive functions semantically as the subject of the verbal idea implicit in the head noun. If a subjective genitive is suspected, attempt to convert the verbal noun to which the genitive is related into a verbal form and turn the genitive into its subject.he genitive substantive indicates the kind of time, or time within which the word to which it stands related takes place. The easiest way to remember the genitive of time (as opposed to the dat. and acc. of time) is to relate the genitive back to its basal signifiance.