What Mr. Bean does "use a teleportation power" mean ?
I was quoting that rule in response to your original question which hinged on critting with one weapon and using the wield property of another to daze the same creature
"2. He also wants to weild another item in the set which is the "Blade of the Eldritch Knight". Its a heavy blade but a rogue can "Weild it" in main hand and have his dagger in his offhand.
The reason for this is simply.
When you crit with the "Rebuking Bracers" on and with a melee attack, you can also daze the target if you are "Weilding" the Eldritch blade, note that it says you dont have to be attacking with it. "
As to teleporting I would say that using any power that teleports counts - race ability, class ability, item ability all count.