Players be like
Then after viewing your link I have two things.
First, I guess you’ll have to downsize a bit. Elephants are classed as being to big for the spell to work, so you’ll have to go with something like horses.
Second: is the range/area of 30 feet in reference to how close they have to be to you, as well as the aoe?
Rules as written, it affects an unlimited number of willing creatures within a 30 foot AoE of you.
But it has a duration of 24 hours, and you can continually retrigger it as many times as you want during that time by expending a standard action. I could see an argument being made to ready an action to transform the bugs when they come into range as they dive bomb the opponent, but even if that works, the caster is going to be awfully close to ground zero.
