Quote from YoungPyromancerI heard that the percentage of rare-spot cards that are mythics is 15/121. I guess that means that the rare sheet has 2 of every rare (2x53) and one of every mythic (1x15). This is almost 1/8.
How does this work for smaller sets? Dragon's maze had 11 mythics and and 35 rares. Does this mean that the mythic percentage is 11/81? This is somewhere between 1/8 and 1/7.
Quote from Armadillo KingAll rares are 2 per sheet and mythics are 1 per sheet, regardless of set. A "standard" small set simply doesn't use all 121 spaces on the sheet. Dragon's Maze is 10/80 - Maze's End is actually on the 'land' sheet, not the rare sheet. Most sets have a sheet for the basic land slot, but Dragon's Maze instead had the guildgate/shock/Maze's End sheet.
Same thing happened with Innistrad and Dark Ascension. Garruk Relentless was printed once on the double-faced sheet, each of the double-faced rares were on it twice, and the commons and uncommons were printed in ratios that would approximate how often the 'regular' commons and uncommons appeared in packs to fill the sheet. That's why those sets had extra rares/mythic than usual.