Why do you want to, it only works if it damages a single creature. A dual class cleric and wizard/sorcerer can do it a level 20 with metamagic mastery but it still doesn't make a lot of sense to do.
Command doesn't work well as the enemy doesn't stay Prone. If your goal is to benefit from AoOs it works, but you don't have the benefit of attacking a Prone target.
Command doesn't work well as the enemy doesn't stay Prone. If your goal is to benefit from AoOs it works, but you don't have the benefit of attacking a Prone target.
however if your goal is to waste the enemies' actions, it's very good