Bryan, Tunneler King

At the beginning of each opponent's upkeep, that player rolls a d20. If the result is equal or less than the amount of emblems you have named Tunneling Emblem, for each card that player would draw this turn, they create a 1/1 white and green Weasel creature token instead.

{1}{w}{b}{g}: create a 1/1 white, black and green Weasel Tunneler token with "when this creature dies, you get an emblem named Tunneling Emblem.