It definitely isn't.  Casually, Marcus begins spinning the end of his spiked chain, ready to maul the viper if it comes any closer.  It might have its uses, but Pokeballs are expensive -- he can't afford to waste one on a second venomous Pokemon.<br/><br/>If the viper stays out of his way, though, he continues through the forest.  He could use the practice, but the viper probably isn't the most dangerous critter around anyway.  No sense wasting time on it.