How do Dravers play (no pun intended) with various equestrian sports, such as polo? Do they have their own leagues, or do Dravers and human/equestrian pairs compete in the same league (perhaps even on the same team)? Similarly, are there human/equestrian pairs that compete in Draver jousting?

Dravers have their own range of sports, Polo is not yet that popular among Dravers as it is with the Quange (full size horse taurs) overseas so they do not have an official team or competition within the new Benelux where most of the Draver population lives. They do have their own version and seperate competitions of track and field such as long distance running, long jump and high jump and javelin throw. Chakker (a chakat version of American Football) is gaining in popularity with Dravers and offeres some mixed species competition outside of the annual long distance runs, though there are some Draver basketball and volleyball teams that compete against humans and other bipedal species. They can compete in dressage against a horse and rider but there is some discussion about wether or not they should be allowed to in any official competition, so Dravers made their own version of it which is probably closer to floor gymnastics for them without the tumbling and such.

Some more random(ish) questions, this time about the TTG world
* Do the inhabitants believe in a flat planet or spherical planet?
* Do the inhabitants have a geocentric or helocentric view of the solar system?
* Is there the concept of resources being finite?

Sorry for the late reply.

to answer the first two questions, it depends on who is asked but most races know that Eidon is a sphere and believe that there are other worlds out there created by the Goddesses before they created Eidon and placed the moons. Some of the more primitive or isolated races may have some different views, particularly if they worship the sun and/or the moons believing them to be center of the universe.

As for resources being finite the world population does not compare to ours so there are still plenty resources left, but as mines have run empty and some materials being pretty rare and hard to come by there is a realisation that resources can run out. Forests are often managed to balance the need for wood and sustaining the forest, and resource management is especially important to the Vossen from the islands in the sea of mists which is why they have very few buildings and carve most of their homes into the mountains, only clan leaders have the privelidge of building their own home which also doubles as a clan gathering space. The Lipane and those with a high magical ability can summon or transmute basic materials, but this requires a lot of energy so this is done sparingly. As for where the summoned materials come from, they are pulled from the elemental planes and there is a limited quantity that can be pulled from them every day, so for example to summon enough stone to build a small home you would need a small army of highly skilled mages to create the materials over the course of several days, this is so taxing on their magic that they would only be able to do this a few times per year so it's reserved for emergencies or to stock some more rare materials for special construction projects. A novice would not be able to do this but they may at most summon a few pebbles or stones, larger rocks can be summoned as earth spells costign way less magic and those projectiles vanish back to the elemental plane they were called from after a short time.