thank you very much for your feedback
i think you are kind of misunderstanding x-ray.
i meant that it lasted 15 seconds or 30 with redstone.
the super fast pig potion is meant to be so fast that the only thing that can stop you is a block, which will be very hard to place (have you ever tried beating minecraft with max speed?)
potion of life is not instant hp 2/3 it is instant hp as well as health boost (the effect.)
i agree with you on hardcore mostly. hardcore players will however be one-hitted themselves by archers or ranged attacks.
potion of death is definitely unstable now that i think about it and same with the potion of ____