Here it is, with the Sage's reply in bold:zlorf said:Hi,
The Sage advice answer, would be nice.
I have a question about the "Horizon Walker" prestige class in the 3.5 DMG. Specifically, I'm confused by the Shifting planar terrain type, which grants the ability to use Dimension Door once every 1d4 rounds.
Does this ability function on the Material Plane, or only on planes with the shifting type?
You use your "knowledge of shifting planes" to dimension door. You do not have to be on a "shifting plane" to do so.
Technically, when you gain a level in Horizon Walker you can immediately master any terrain, even one you've never seen-- a forest elf can master the desert, and a clueless Prime can master shifting planes. Lots of other class abilities work this way. A ranger can choose dragons as his favored enemy despite never having fought one. A wizard who multiclasses to fighter can take EWP: Spiked Chain, whether he has ever held one or not.zlorf said:It does say it that plane mastery works like terrain mastery, but shouldnt you at least visit the plane at least once to get the ability?
The visiting plane is more for roleplaying than anything else, but if your dont have a day or two to waste in the adventure to travel off to the plane, then you may not have the ability as soon as you level.
Restrictions on that sort of thing are up to the DM. My campaign tends to be quite lenient-- we retroactively assume that the PC has done the requisite study or practice during downtime. But I think it'd be reasonable to require RP restrictions on class abilities, as long as you apply that across the board, and you allow enough downtime between adventures for all the PCs to catch up on their training.