There was an error retrieving a chart for Cunning Giant Giants arent a heavily supported tribe nor one that is likely to make a particularly competitive deck at this point
Off the grid sales of this card are even more unbelievable though, as Logan Paul purchased a Gem Mint 10 copy for a reported 5 million
P/T Number 73 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (2/9/2017) Revolt abilities check only whether a permanent you controlled left the battlefield this turn or not
Generally, yes for Japanese-printed cards, especially newer releases
Beckett is the only service to offer subgrades for different categories