Yeah, but I mean SWAG. Theres got to be special stuff that works everywhere and has power, yeah?
Many Amberites have objects or weapons with great power. In general, the object is a part of their personal reality, and as such will work nearly anywhere, up to an extent. These things, be they sword, steed, armor, or pocketwatch, are to an extent empowered with what makes the character Real, and thus can never truly be lost. Even if stolen, broken, or buried under a thousand tons of rock, the item can be retrieved by taking a walk in Shadow and deciding it will be right around the corner. The exception to this is if someone else Real gets ahold of them, and decides to fight you for the attunement.