Crystal drop rate should increase with opened crystal number.

2213sexy

So far crystal drop is mentioned, but it's not realistic. So why not drop rate increase according to crystal opened so far. At least it will be fair. If it's 1% chance at least after 100 crystals opened it should be 100% promised. Giving 20% drop rate and even after 20 crystals opened you won't get any champ. It will leave a hope for summoner.