Phantom Flanker (3.5e Power)

As you manifest this power, a cloud of smoke completely surrounds you, and you are teleported a maximum of 10 feet to the direct opposite side of your opponent. Simultaneously, a snarling illusory beast emerges from the smoke to attack your enemy. If the target fails a Will save he reacts to the illusion and is treated as flat-footed for your next attack. The smoke and illusion disappear at the end of the turn in which you manifest this power. This power cannot teleport you into an already occupied or otherwise illegal square. Opponents that cannot be flanked are not affected by this power. A True Seeing or similar spell sees through the illusion but not the smoke.

Augment:  For every 2 additional power points you spend, the range of this power increases by 5 feet (allowing you to teleport behind larger creatures), and the save DC increases by 1.