Mindshred found it necessary to create some sensible errata for spells and equipment. Being sensible people, we're using them.

Altering the Course's basic functionality will distort the game. It is banned.

Mental Quickness
Change the spell's Area of Effect to "One target" and its text to the following: "The target's Intelligence Trait increases by 1 for the duration of the spell." Add the following: "Raises: Increase Intelligence (+1 per 2 Raises)."

Path to Inner Peace
If cast using a method that does not involve making a Spellcasting Roll (such as Meishido), or if stored in a character with Silent Waters, this spell heals wounds equal to the Insight Rank of the caster (including affinities and deficiencies) multiplied by their Water Ring.

Silent Waters
Add this line: "The stored spell consumes one of your spell slots of the appropriate element until it is cast (at which point the character may rest to recover the expended spell slot as normal)."

Kiho
Touch the Void Dragon
Change text to: "For the next three hours (e.g., for the remainder of the thread), the rank of your lowest Ring (you choose in the event of a tie) is considered one higher. If any of the Ring's associated Traits are lower than the new value of the Ring, those Traits are also considered one higher."

Arrows
Because the price of arrows in the core book is somewhat...high...we've decided to make them a bit more affordable. When purchasing arrows for your character, change all prices in bu to zeni. If you have a bow in your starting package, you may begin the game with ten arrows of any type.

Kata
Kata cannot be activated outside of combat, and once active, only last until the end of a given combat. When a character rolls Initiative, they may Activate a Kata (without spending an Action). Activating a kata at any other time is a Simple Action, as noted in the book.

Yumi
The Yumi has the Samurai descriptor.