I think it's actually the opposite. While Aladdin's stone is used to suppress his Magi powers, I think Titus's stone is actually being used to transfer some of Scheherazade's Magi power to him.
After all, if it was a suppression stone, it's not working for shit, because he has magoi swarming all over him.
If that's the case, that sucks for Titus, because he needs an outside buff just to be able to go toe-to-toe with Aladdin with a limiter on.