So Durant's hidden ability is truant? why? it doesn't seem like that lazy of a Pokemon, and none of its Pokedex entries mention it being lazy at all. Is there some kind of strategy with truant for Durant?
Game Freak most likely wanted a Pokemon to use the strategy of giving the opponent the Truant ability (possibly as a joke). This is possible since Durant gets Entrainment, a move that replaces the target's ability with the same one as your own.
It's a gimmicky strategy though. I don't recommend it since a Truant Durant is basically useless ability passing aside.