Calgar's ability is also better for getting cards than Greyfax's, as you don't need to faff around with getting a Clue token and paying even more to sacrifice it Calgar just gives you a draw instead
Whenever you cast a creature spell, it gets a +1/+1 counter
Mint / Near Mint - In 'as new' condition
The protection also lasts until the creature eventually gets removed, so you dont need to worry about tapping out to keep your precious creatures safe the way you might with some instants
These machines can be bolted to a countertop, desk, railing, etc, or mounted to a vending rack so you can put a few small machines along with it and offer other items, too
First of all, if you havent looked at it, take a moment and read the preview article