Potion of gain ability

!
Name	gain ability
Appearance	random
Base price	300 zm
Weight	20
Monster use	Will not be used by monsters.

Quaffing a potion of gain ability can increase your attributes. Quaffing a cursed one does nothing, nor does quaffing a noncursed one while wearing a ring of sustain ability; in either case, the potion will not be identified. Blessed increases all your attributes, uncursed increases just one at random. Attributes will be increased by one point.

Note that only 6 tries will be made to find an attribute which isn't already at its maximum. If all six fail, you will get the usual stat-maxed message for the last one picked: "You're already as [strong, wise, etc.] as you can get!"

When quaffing a cursed potion of gain ability, you get the message "Ulch! That potion tasted foul!".

When quaffing a non-cursed potion of gain ability while wearing a ring of sustain ability, you get the message "You have a peculiar feeling for a moment, then it passes.". This can help identify a ring of sustain ability if you have already identified a potion of gain ability.

Messages

Message	Attribute Improved!
You feel strong!	strength
You feel smart!	intelligence
You feel wise!	wisdom
You feel agile!	dexterity
You feel tough!	constitution
You feel charismatic!	charisma

UnNetHack

In UnNetHack, uncursed will attempt to raise an ability one point a few times and might fail. Blessed will always raise one stat, if possible.