MAG-10 for Workout Mass Phase

How would you guys go about using MAG-10 around your workout during a mass gaining phase if that and creatine mono are the only 2 supplements you have periworkout? I just bought a couple tubs of MAG-10 and was curious as to when/how much i should use specifically around my workout.

Right now i have 50 grams whey before and 50 grams whey after my workouts along with 80-100 grams carbs before and 80-100 grams carbs after my workouts. but i will be out of whey by the time my order of MAG-10 gets in and am going to give the casein hydrolysate a shot.