Not sure if this is a bug or an intended change from the latest patch, but it seems that the actual damage from the level 4 bombs has been decreased. The effect of it (poison/freeze/fire) is slightly bigger but the actual blast damage is smaller. I understand the effect of the bomb has always been larger than the blast damage. For instance, when trying to destroy a block I would have to have about half of the block into the shown line radius of the bomb. Now I have to have more than the entire block in the line radius just to destroy it. It feels like I am back to using a tier 2 bomb trying to lure enemies into a tiny radius to get the explosion damage.