These have until recently been an item collected and enjoyed by Japanese children, but soon started being hoarded by adults looking to profit from their high demand and scarcity
Additionally, this seems like it can get out of control, with new creatures like ED-E, Lonesome Eyebot and Craig Boone, Novac Guard giving you massive benefits from the number of quest counters on them
Its lack of availability has helped to drive up its price
Creating 1/1 Food Golems would be good enough, but the fact that those tokens also inherit the abilities of the deceased pushes this so far over the top that it reaches the stratosphere
Another fairly similar idea is to take the same planeswalker and Spell Queller core and combine it with Urza instead of Mystic Sanctuary: Creatures (15) Planeswalkers (5) Lands (19) Spells (21) Here its very important that the Gilded Goose is Gilded Goose instead of Birds of Paradise or Noble Hierarch because the Food is being used to turn on Mox Opal and decrease the cost of Emry, Lurker of the Loch
The set printing of any individual card you receive will be random and may not match those pictured