Most people will use the rippers, have the blot toad near and have them drop out of the sky to get a bunch of attacks, if it is a tough to kill hero, they use chameleons to pepper it with darts first. But yeah, drop the terradons in, drop rocks and charge. Same use of chameleons. The terradons work better for taking a few targets. Drop in, drop rocks in war machine crew shoot the next guy or any crew you didn't kill, charge another unit, preferably the one they just shot, and boom, you should have 2 dead units or 3 disrupted units at the very least.