Crafting specializations for items and potions
aren’t used for control or complexity; they
usually affect frequency or strength without
making you spend an extra slot to do it. A
frequency specialization allows you one more use
per session. A strength specialization increases
the effect strength of your basic enchanted items
by 1 (note, any increases to the basic strength
are applied before cutting it in half for an alwayson
item). In the case of potions, this can create
stronger potions, or ones that you can get two
uses out of. Alternatively, a crafting specialization
may be applied to increase the limit on how
many bonuses may be placed on a single focus
item (a focus specialization).

Little Fairy Drug Dealer. 

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Pixie dust.  'Nuff said.