max

Cardinal - Increase BUS rate (Or what i would do is add more scrolls to it such as DEX,HP etc.)
Balog - Killed +20 no drop
AOC,DK,Troll,Doom Soldier,Falcon,Titan,Crimson Wing,Harpy (Have the same drop rate i think - seems fine for me)
Evil Wizzard - 2x Blade exe,Totamic spear (Should drop EXC weapons - but seems ok like this)
Stone golems - seem fine
Dark Mare - Dread mare (fine)
Apostol of Flames - Can't pick up ANY box


Let me know what % you set all these monsters at,i'll be able to tell you how much you can actually increase it at least for BETA.
Overall it's not bad at all.