Sailor Mercury's Transformation Pen

Origin
Sailor Mercury (civilian identity: Ami Mezino) is the second of the Sailor Guardians to be introduced in the manga and anime. Considered one of the smartest of the Guardians, Ami's IQ is 300 according to the manga. She has a docile personality, and she studies almost constantly, preferring to learn and read over playing games. Her powers base around water and ice, and she also has excellent skills in computers and electronics.

Effects
This Pen absorbed a fan's desire to be like Sailor Mercury herself. Holding the Pen and saying "Mercury Power Makeup" allows the user to transform into the exact likeness of the Guardian, with all of her abilities, and raises the user's IQ to 300 while transformed (the IQ goes back to normal when the user transforms back to normal). However, the Pen also absorbed Ami's study habits, and after use the user will study obsessively for 72 hours. It also makes the user more docile, allowing them to keep their cool much easier under high stress situations.

The move set available to the user depends on their IQ.

Collection
Collected from Tokyo in April 2016 by Agents Megan Wilcoxson and Myka Bering after reports of monsters attacking a museum led the pair to discover two people using this artifact, along with Sailor Mars' Pen, to save people.

Trivia

 * This artifact needs to be used more often than other Sailor Moon artifacts to keep its mood up (once a month). Why the artifact requires more usage than the others is unclear.
 * The Pen will work for any female user, but its full potential is only unlocked when used by someone whose IQ is already much higher than normal.
 * According to {CLASSIFIED} of the Sailor Moon Fans, the Pen was tested among the group. She had the highest IQ of 145, but only had access to four of Mercury's six moves. It is unknown exactly how high the user's IQ has to be to unlock the remaining two moves.