There is no stopping in the Loading Zone
Number 412 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Timeless, Vintage Not Legal Formats Alchemy, Modern, Pauper, Pioneer, Standard Rulings (6/8/2016) The "shuffle and put the card on top" is a single action
With 40 lands, it's much higher - 12.2%
Card Text: Vigilance, trample Other modified creatures you control have vigilance and trample
Because of that, it means the set is replete with more mechanics than Im willing to count, in much the same way a normal Core Set does, although a lot of those are flavour more than anything else, simply adding D&D skill names before specific card effects
You can imagine that, despite so many having been produced and purchased, very few would have been kept in decent condition, if they were even kept at all