I don't know how anybody can say this isn't good for shops.
It shuts down dack fayden
It counters the sphere effects for yourself
It keeps your ballistas alive even after you remove all the counters for extra damage.
It reloads your hand, giving permanent card draw, something shops has always lacked.
Its only drawback is the cost. In a hyper-aggressive ravager deck dropping 6 mana probably isn't worth it. But in any prison style or controllish type shops deck, this seems like an auto-include.