I was wondering if there was an issue with the catalyst dropping in comp. I've read it can drop from Fabled/Mythic (for a 5%/10% chance respectively) but between a buddy and I we haven't seen it drop. I know it's a low chance, but we have 11 wins each in Mythic and haven't seen it. Probability wise, a 90% chance repeated 11 times only has a 31% chance of happening (.9^11), so theoretically there's a 69% chance it should have dropped. And two people haven't seen it. Just curious if there was a bug or if my RNG is just that bad?
It's likely bad RNG. I frankly wouldn't bother with it because it's a redundant catalyst, but if you still want it then my advice is to keep winning. If you make it to Legend then it's guaranteed so best of luck.