Do you have evidence that PlayTCG's randomizer is suspect? I have drawn 1,000 rolls from the PlayTCG die and conducted a chi-squared test. The probability of observing the given distribution (or a more skewed distribution of evens and odds) if evens and odds were equally likely to happen was way over 0.05. (0.05 is the typical criterion for statistical significance.)
Do you have a sample of rolls that you would like to provide that demonstrates that PlayTCG's randomizer does not sufficiently randomize?
---------- Post added 11/29/2012 at 04:02 PM ----------
That's most likely because you're not randomizing your deck as much as PlayTCG does.
Huge clumps are typical of randomized distributions.