Arizona Diamondbacks infielder Ildemaro Vargas in the fourth inning against the Toronto Blue Jays at Chase Field. Mark J. Rebilas-Imagn Images In the fickle world of fantasy baseball , there is a distinct difference between “chasing points” and “riding the wave.”  Chasing is reactive. It is buying high on a player whose heater is already cooling. Riding the wave, however, is a calculated embrace of momentum. When a veteran suddenly finds a new gear, the savvy manager doesn’t ask how long it will last, they simply roster the production until the wheels fall off.  If your roster is currently starved for power, two veteran names are currently defying the aging curve by leaning into one of the most bankable trends in modern hitting : the launch angle revolution.  At 34 years old, Arizona’s Ildemaro Vargas is currently the poster child for “riding the wave.” Usually known as a high-contact utility man, Vargas has transformed into a legitimate offensive engine.…