Tap a character during his site phase at a tapped or untapped Ruins & Lairs [R]. Make a roll (or draw a #) modified by +3 if the character is a diplomat. An ally may be played and placed under the character's control if the result is greater than 6 plus the ally's mind stat and the ally is not restricted from moving in this site's region. If an ally is played, tap the site if it is not already tapped.
Fallen Radagast has the following:
I need confirmation if my assumption is right:Hero allies Radagast controls have no movement restrictions.
Although Radagast could control Tom Bombadil and move with him e.g. in dragon country, he may not play him with Here, There, or Yonder (HToY) at a site in dragon country. This is because HToY has as a playability condition for the ally that it must be allowed to move (to a site) in HToY's site's region (the text on HToY is wrong by the way because literally no ally is restricted from moving in any regions but from moving to sites in specific regions). Radagast's card text would only apply to the ally after it was played through HToY. Therefore there is no hope for Radagast to play Tom in dragon country, right?