Answer: Too many!
Today I finally got my Reins of the Green Proto-Drake from my Cracked Egg from the Oracles. I am so happy now that I don't have to buy those Mysterious Eggs anymore.
Phew! Green is such a pretty colour! My advice for anyone trying to do these is to start with Frenzyheart first then do Oracles. Because I started with Oracles, tried for ages with the egg with no luck, switched to Frenzyheart to get the Frenzyheart Brew, then went back and had to get revered with Oracles again. Ugh, time wasting!