Would you play a character with this starting move?
When you unleash a spell from a wand, staff, rod or other magical container, roll+INT.
On a hit, the spell is cast.
On a 7-9, choose 1
– casting the spell from the container draws unwelcome attention
– Spend 1 charge of the container
Imagine things like a staff of magic missile (3 charges, 1 weight) to be used with that. The character would of course start with 2 or 3 such items.
Other characters can cast spells with this but it costs 1 charge (and maybe a roll too?)