Ultima Underworld 2 - Labyrinth of Worlds

Unlimited scrolls and potions:
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Use a fireball spell on a potion or scroll. Collect
the remnants of the destroyed item and use it.
The remnants will have the same effect as the original
potion or scroll and may be used an unlimited amount
of time.
Free Gold:
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If you ever need more money, find someone who you can
barter with. If they have any money, they will give all
their gold for one gold piece. (Example-13 gold traded
for 1 gold piece) The NPC’s always accept the trade.