a box that when used you can cast up to 25 spells of users choice but for every spell casted you must roll a d20 and add your spell modifier if you roll less than a 5 then your DM choses something bad to go wrong with the spell then repeat for each spell cast but the number of what you must roll to succeed the user can chose to end the box when ever they chose but if all attempts are fails summon Yogg the great devourer the box disappears after the use is ended