This set of dual magical rings requires
each ring to be worn by a separate person. They have no power if
attempted to use singularly. It is thought that a single user attempting to use both rings the same time can cause a dangerous magical feedback effect resulting in some unpleasent side effects.
When pressed together and the correct
incantation is spoken by both wearers, the rings bestow a separate
magical power to each welder.
The most famous set of rings is known
to allow one user to poly-morph into any known animal (HD or Level
limits are recommended); while the second user takes on the form of a
water-elemental.
The wearer of the water-elemental ring
is able to chose to take on a purely liquid, a gaseous vapour or a
solid form made of ice (an ice bucket, for example).
The welder of each ring must state what
form they are choosing as part of the incantation and the form may
not be altered once the effect has taken place (you chose to be a
pterodactyl, you're a pterodactyl until you chose to transform back, or
the effect wears off). The rings are useable only once per day and the
effect lasts up to one hour.
Other Wonder Rings pairs with different
effects are thought to exist, but their powers are as yet, unknown.