Similar effects that "tap and freeze" a creature don't exert that creature
First two numbers are the number of the card in the set, the next two numbers are which version of the card it is (normal reverse 01, pokball reverse 02, glitter reverse 03, kaleidoscope (?) reverse 04, master ball reverse 05, shiny 06, stamped 07, regular IR 08, horizons IR 09)
With a base toughness of 7, Betor makes it easy to hit at least the extra card draw trigger, and with heavyweights like Utvara Hellkite or Ancient Gold Dragon in play, the life loss effect becomes a terrifying reality
Its a good solution for bulk cards or if youre on a tighter budget, but if youre looking to take care of multiple sets of cards in your collection, the Gamegenic deck box does work out to be the most cost effective