You need to declare attackers to trigger melee , but creatures that enter tapped and attacking are never actually declared as attackers
Furthermore, the contents of the booster products vary significantly between a Japanese and an English release: Japanese booster packs include 5 cards while the English packs include 10
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
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
Black Label Grading Grading your Pokmon card can absolutely increase its value if its rare, in great condition and in demand