Getting 10 Mega Hyper Rares in a single pack before the set is publicly available means either the pack itself was an extraordinary error, or someone spent an enormous amount of money buying from resellers to accumulate that many cards beforehand, which wouldn't explain a single pack containing all of them.The reseller angle doesn't hold up well either
Major Spirit boss monsters include the following: "Hino-Kagu-Tsuchi" empties the opponent's entire hand before their Draw Phase if it inflicts battle damage
Its a Common, which means its practically free, a full set costs pocket change, yet it earns its slot in some of the most successful lists in the format
Sure, a three-mana 3/4 with reach is solid, and will likely outclass anything else your opponent is playing early on
Unfortunately that win rate didnt hold for very long
Proper understanding helps in choosing protectors