I sometimes find the rules about what is and is not permissable oddly arbitrary.. what i'm thinking of is fictional probability.. In a world where magic is possible , allowing the transmutation of energy at will to allow perpetual motion (the recovery spell), where creatures can be summoned from the netherworld, and have solidity, surely in such a world anything is possible? I once asked for a special area to be created, a small one, where the power of the crystal allowed everyone's stats to be maxed for a short time every month, say, so that all could fight on an equal basis, and was told that this couldn't be justified ic. Surely, in a world where WEAPONS have magical powers, we have magical powers, the crystal has magical powers, animals can be summoned at will, then the land in some places, at certain times could have magical powers, and some animals , able to be summoned at the will of their owners, could also climb at their owners will?
Or maybe the laws of gravity dont apply in the netherworld, but do apply in the dome.. unless they are drifters, when they only partially apply.