Mass lobotomizing is OP. I've tried to propose an idea like this in the past. The best solution may be to just halve all opponent attack strength, this way they could keep their abilities (like a mutated Graboid gets a random ability but stays burrowed). It may seem a bit OP if they can't unburrow their creatures, but it's more reasonable than mass lobotomy.
Using it with a PA'd diamond shield is just gross though. Sundials to stall until the opponent has a bunch of creatures out, then just absolutely neuter their damage with something like this. Yikes.
