ANAHEIM, Calif. — Nic Dowd looked around for some wood to knock on as soon as he heard the question after Sunday’s morning skate at Honda Center. Dowd, the Golden Knights forward, settled for a tap to his own head, but that may not have been enough to satisfy the hockey gods. “Why has this penalty kill been so good?” he was asked, quickly realizing he was tempting fate by even entertaining such a query. Hours later, the Knights would surrender a pair of pivotal power-play goals to the Ducks in a 4-3 loss in Game 4 that evened the best-of-seven second-round series at 2-2. The Knights will return to T-Mobile Arena for Game 5 at 6:30 p.m. on Tuesday and better hope their dominant penalty killing group returns with them. That could certainly hinge on the status of captain Mark Stone, whose absence due to injury on Sunday probably played a significant role in the Knights having their streak of 21 straight kills snapped in the first period.…