The Blook Chances Are Based On Percentages And Each Have A Unique Chance. All Uncommons Will Usually Have A 15% - 20% Chance, The Rares With Usually Have A 10% - 5% Chance But Some Epics May Have A Chance Type In The Rare Catagory. The Epic's Have A 5% - 3% Chance To Be Gotten And For The Last Of The Main Rarity's, The Legendary's Will Usually Have A 1% - 0.01% Chance To Be Obtained.