The player who slashed it should be called on a delayed penalty,making a goal scored on the play count. I think.
- doon
First, it wasn't slashed, so not applicable here.
Hypothetically though, a slash breaking a stick creates a delayed penalty; then playing the puck with a broken stick creates an instant whistle; no goal is scored and both teams get minor penalties, one for the slash and the other for playing the puck with a broken stick.
In most games, NHL refs will then call a second phantom penalty on whoever slashed the stick so the other team still gets a powerplay, but that's refs calling their feel of the game, not the actual rules.