I did around 70000 to a frost zombie with shadow blend and sharp senses, all specialist equips. High piercing really increases the damage you do to lower leveled enemies ( i mean like SERIOUSLY increases the damage you do if they are like 10 levels lower than you).
You guys, if you really want to get the highest hits, go to zone 1 after you beat the game, disable your teammates, do all the buffs/debuffs you need, and then hit the enemy, that's how you do max damage.
It ONLY works on low leveled enemies though. THe reason why is because of piercing.
Every time you level up, you automatically increase the piercing of EVERY element so that it has a 15% chance to critical to an enemy of THE SAME LEVEL, and then when it criticals, it adds 30% damage. This means that if you fight lower leveled enemies, you ahve a better chance to critical, and then when you do critical, much more powerful. If you notice the difference in piercing betweeen level 1 and level 30, the percentages don't change, but the number itself does. That is to balance out your criticalling against higher leveled enemies as you level up. And then when you add more piercing equips like I did (all specialist gear, extremely high physical piercing), it will increase teh chance of critical, as well as the damage added when criticalling, and when that is factored in with the level difference, then you can get HUGE damage (so the extra damage you get against enemies that are lower leveled when you critical is in the thousands of percents instead of a low number like 30%).
This is all Krin just trying to emphasize the importance of leveling in Sonny 2. The higher your level is and the lower the enemy's level is, the more damage, higher chance of criticalling, and more damage gained from criticalling you will get.