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.
The genitive primarily functions adjectivally to limit (restrict, see Louw Linguistic Theory) a substantive by describing, defining or qualifying / modifying it. The genitive also sometimes functions to express the idea of separation, point of departure, source, origin (ie. the ablative use).djectival genitive = a person is justified not by works of the law but by the faithfulness OF JESUS CHRIST. Examples of verbal nouns: orgh, agaph, dehsiV.... Where the genitive substantive produces the action implied by the verbal noun. Often this genitive can be classified as adjectival, possessive.