Forum:Differences between the OCG and TCG Rarities

Can someone explain me why there are so much differences in rarity between OCG and TCG cards in the latest sets ? A good example is in Abyss Rising where Abyss-sphere was a Common in OCG but in TCG it has become a Ultra Rare/Ultimate Rare. I just don't get it.. HPZ - O.N.E. - Captain Moe FTW ! (talk • contribs) 03:55, October 25, 2012 (UTC)