is there anyway a Planar die roll can be integrated into the Magic pliugin..?
Not in a particularly useful way, I'm afraid. Lackey doesn't give me any way to display different messages based on probabilities.
I think the best way to simulate it is to decide with your opponents which numbers on a D6 correspond to planeswalk and chaos (say, 1 and 2), then use the Roll button to roll a D6.