False Coin

This is is spell that when not used with care, can cause serious damage to the economy. Casting it on a pile of coins, regardless of which currency, creates five more stacks of said currency of the same worth. While it is said these coins are only temporary, they indeed are permanent, exact duplicates.

It is unknown what made the mages of Moonshade to create this spell, and also why it had't yet cause serious inflation, as it is very easy to cast and cheap, compared to the possible gain.

Trivia

 * In hindsight, that the guards at the Bull Tower explicitely want a Gold Bar from the Avatar actually does make sense, should they know of this spell, as gold bars can't be replicated with it.