[Alneyan]

My other nice power is Deceleration (Reflex+Power Resistance, but I am told Dwarves have poor Reflex saves), which will slow the dwarf done by 50% for one full minute. Its range is 30 feet, but casting it sneakily would probably work (as in, Dieger opens the door enough to give me a line of sight, and we run like the wind).

The Last power is Déjà Vu, which would disable a Dwarf for one turn, assuming he has done something silly (such as spending his turn asking "Who goes there?" and checking his weapons). But Deceleration will probably work better, followed by some Mind Thrusting.

Oh, and feel free to bring a ranged weapon of some sort. You did not use it before because you wanted to show off your rapier skills, or simply needed to hold your ground while we dealt the bombardment from afar.