Reckless Encouragement of Arcane Peacock

What's it called? Reckless Encouragement of Arcane Peacock (in short, REAP)

What does it do? If the victim is a wizard, a witch or a priest (that is, someone that has rituals or spells), a good cast of this spell creates a 'craving' in them for the casting of a certain spell/ritual. If the crave isn't satisfied, it brings about many bad things (maluses, or total apathy in being subjected to attacks in the case of npc's).
The spell is great fun, an can be moderately useful when cast on the said persons, as they will be totally defenceless. The problem is that even in these cases, more than half of the times it doesn't come into effect, and you get no information of failure, so they can defend themselves. Besides, the same effect is catered more effectively by Stacklady's. Nevertheless, it is something good to have.

Where is it? It might come as a surprise that it belongs to the Divinational Arts grimoire, at the Bes Pelargic Wizard's Guild. On second thoughts, the spell *does* require divining the craves of the casted, or some ability to inspire them...

What does it require? A tigerwood staff, which isn't consumed (even in miscasts).

What skills do I need? Air, Channeling, Divining, Binding, Enchanting

Has it worked? The proper output should read something like this:

You prepare to cast Reckless Encouragement of Arcane Peacock on the xxx.
You swing the tigerwood staff around your head focusing on the subtle roar emanating from it.
Concentrating on the sound, you channel the dull droning of past lectures, spell trainings, and rituals you've attended in the past. Ew.
You swing the tigerwood staff so fast a rip in time starts to form! You start mapping a way for the excitement you once felt for the arcane to come forth, into you!
As the map becomes more clear, you rip the route away and fling the energies like a mental whip, cracking the xxx in the forehead!
You focus on this mental connection and enchant it with all the excitement of your youth pumping it into the xxx's mind.

Notes:

As was previously stated, you don't get a message that tells you if the spell has succeeded, appart from the 'proper' line of casting messages, which may mean the victim if unaffected. To be sure, you'll have to wait and see the npc cast a spell or a ritual.
Otherwise, you do get two failure messages. In case the victim doesn't belong to the three categories stated above, they will 'seem to shrug off your assault'. If it's tougher and resists the attack, the craving goes back and affects you, with the following messages appearing: You can't seem to force the feeling into the xxx. It seems it will have to stay in yourself... / A weird feeling washes over you. / You feel an overwhelming urge to cast xxx

Help Information:

Reckless Encouragement of Arcane Peacock - Causes a dangerous craving.

As reckless as this spell sounds, it does in fact cause an uncontrollable craving within your target. Should this craving not be satisfied, your target will slowly start losing the ability to maintain concentration on his or her skills, thus making them weaker.