Sure there balls,
Offensive spells burn more $ off your enemy. That's their point. You could read that right in the spell description so I KINA felt that went without saying.
Like I said there are 2 kinds of $ untouchable like offensive pots, lands, and buildings then the kind I can farm off you which is defensive pots, allies, and money up on your profile.
Think about how to get at that $ and you have your enemy licked.
Burning 11 pots on a sub t3lc player will cheese them off fast. It's a lot of work to keep 11 pots at that size.