The only AS potion is Life Blood Cave Potion (Arterial Strike 300). A jump of 700 levels seems...bloomin' huge!
Sure the jump in levels may seem large, and it is. It is also the only way I can think of to make multi hitting an actual viable option, versus the current monotony of designing a simple maximum damage setup, to try and 1-hit everything.
With this potion in circulation, the fundamental philosophy behind hunting setup design can/will be altered.
The same cannot really be said about just throwing out another uber powerful stat enhancing potion.
(Although it would be a high level potion, it SHOULD NOT be made prohibitively expensive. We want everyone to try their hand at designing a setup that can survive a return hit)