Transfer Understanding

You may spend 1 hour instructing a number of willing creatures equal to your spell casting modifier in the meaning of a spell scroll. At the end of the instruction, each creature gains the ability to cast the spell from that specific spell scroll as though affected by Decipher Scroll, even if the spell is not on that creature's class spell list. This instruction grants no knowledge of the spell itself and confers no ability to decipher or cast other spell scrolls. The understanding ends for all instructed creatures immediately after the spell scroll is cast or destroyed.

At the end of the instruction, roll a d10. On a roll of 1, the spell scroll is destroyed before any creature can cast it.