User blog comment:Murine5/Valkyrie Crusade Poll/@comment-30169657-20161029030036/@comment-122.52.51.47-20161031023312

>If I'm correct, since mirror maidens from R-UR are valuable cards in the game, it would be nice to obtain it from other means besides Alliance Bingo Battle but  have the drop rate as a low percentage (as an example 0.00001%).

And they get more people complaining because of the stupidly low drop rate. Besides, if Mirror Maiden is obtainable via drop, I have a feeling that RR prizes and summon rates would be adjusted to be just a single copy to compensate/balance things out. After all, why would people bother to do summon for another copy when you just hunt for Mirror Maiden instead?

>To categorize event into different lvl ranges -> 1-50, 51-100, 101-150 and 151+

First, what's the difference between the level ranges you've given as an example? Which follows the logic of what's the incentive of leveling up then? Doesn't that mean, to maintain an easier ranking (meaning avoiding to level up), use jewels for resources? Wouldn't people be turned off when they leveled up, the difficulty just spikes up when trying to rank because of a sudden switch to a higher tier/range?