Why don't we put a timer on request when requesting non-rares from mobs?
This is to stop consumable farming abuse.
After requesting a common item from a mob, you cannot request the same item from that mob for 5 ticks. It is a similar wait time for an evil for the mob to repop.
You also can not request items that don't reset on that mob. This stops duplicating items.
This is good for even the non-cheaters, as we would know when it is 'acceptable' to request another potion from the same mob.