In my opinion, one of the greatest (or worst, if your the opponent) things about Pests is devour is a passive skill, so it can't be lobomized making Decay a HUGE pain for Rol/Hope. Anyways, I can't really find why people would use Burrow for it, fractal the Pest and your opponent is looking for a quanta lockdown! Besides, Sanctuary was already made to counter this card...