I think that the 50% possibility of epic drop is fine ,lowering to 15% would make all raids not worth their time. A good suggestion would be to remove atlas as a drop from such epic raids like the dragons, kartia is the place for such a low epic to drop as it is, replacing it with more angel drops, and the most important notion - Remove the 200k limit on the damage dealt - what is the point in upgrading our equipment if we cannot make use of it against the hardest enemies of the game like the raid bosses.