They may activate its Trigger keyword ability instead of adding it to their hand
Now you do need to have a location in your hand for his effect to do anything, but with some smart mulliganing and/or a good amount of draw, that should be consistently achievable on curve
A handful Rhystic Study, Esper Sentinel (both $50+), and Sylvan Library (~$30) carry real price tags, but the majority of staples (Sol Ring, Arcane Signet, the land suite, most spot removal) cost a dollar or less
All jokes aside, did you learn anything interesting
Its worth pointing out that the whole Shadowless design was a North America-exclusive thing, so naturally 1st Edition releases elsewhere in the world would all be Shadowed forms
As Aladdin has a Shift ability, it can instead be played for 5 Ink rather than 7 if you play it on top of another Aladdin card that you already have in play