What?

No idea what the latter sentence is about, but there's not much to argue with the former. Plarium probably spent about 30 minutes on the very basic logic they built for combat, and then spent the next five years adding conditional statements to it to deal with all their self-created problems.

Are you can understand able to logic?

What do you mean what? I just activated 13 dark shards and all 13 gave only rare heroes, and the red stones, no matter how much I activated them, gave nothing but rare heroes, do you think this is correct and random works as it should? It’s stupid to do that, don’t you need financial investment in the game? Are you so fed up that you don’t care what the players think about you and your project?

This sentence makes more sense than the initial post.

I think the drop rates are consistent with what's posted about them yes.  No, you don't need to spend any money in the game.  Plenty of players are successful without spending anything.