Potion of Paradox
Potion, rare
Price: 1,200-2,400 gp | low sentimentality
When you drink this potion, you contemplate the nature of the universe. You realize that a creature moving toward a destination must first move half the distance between it and its destination, then half the remaining distance, again and again, meaning that it never manages to reach its goal. This liquid is a clear concoction that distorts objects seen through it such that they seem to stretch infinitely into the distance.
Paid
For 10 minutes after you drink this potion, creatures can’t move toward you more than half the distance between them and you during their turn.
Overpaid
For 10 minutes after you drink this potion, ranged attacks that target you don’t hit until the end of your turn. If you move during your turn, the ranged attack misses and strikes the empty air where you previously stood.
Source: The Gray Merchant of Asphodel