Psa for capsule losers:
Gold capsule = rare capsule (probably)
Green shockwave when capsule opens = commons only (can still happen on gold capsules somehow?)
Blue shockwave when capsule opens = rare capsule
Gold shockwave when capsule opens = super rare
If you read the book you unlock in awards for 100 capsule pulls youre basically guaranteed to get a gold capsule 80% of the time.