The effects of this contract last for the scene. The defensive manifestation can only be invoked once in that time. If the phantom willpower it provides is depleted, it’s gone until the next scene.
This clause now has some soft limits to prevent rampant abuse.
The objects created with Cobblethought are made of entirely mundane materials and have no supernatural qualities.
A changeling can only maintain a number of permanent dream objects equal to their Resolve+Wyrd. Further, they can make one or more of these objects vanish into smoke as a reflexive action, no roll required.