SRD on the Blink Dog Dimension Door Ability wrote:Dimension Door (Su): A blink dog can teleport, as dimension door (caster level 8th), once per round as a free action. The ability affects only the blink dog, which never appears within a solid object and can act immediately after teleporting.
SRD on Share Spells for Paladin Mounts wrote:Share Spells: At the paladin’s option, she may have any spell (but not any spell-like ability) she casts on herself also affect her mount. The mount must be within 5 feet at the time of casting to receive the benefit. If the spell or effect has a duration other than instantaneous, it stops affecting the mount if it moves farther than 5 feet away and will not affect the mount again even if it returns to the paladin before the duration expires. Additionally, the paladin may cast a spell with a target of “You” on her mount (as a touch range spell) instead of on herself. A paladin and her mount can share spells even if the spells normally do not affect creatures of the mount’s type (magical beast).
My recollection is in the Arms and Equipment guide it states that you can purchase a Ring of Blinking and it will atune itself to your mount allowing you to blink in concert with your mount. But how do you get to dim door with it again?
Thanks,
TA