Double charge move for event Breloom

Would it be worth to get Grass Knot/Dynamic Punch on my best Breloom at the end of the event?
Currently I have 1 FP Venusaur, 1 maxed A-Egg, and a few high level K-Eggs with double grass. For fighting, 4 maxed Machamps, and 2 mediocre IV L35s for fillers.