I just had a run in with my DM. I used Ride the Lightning which does as follows:
"You may transform into lightning as a standard action and instantly travel in a straight line to a distance of up to 120 feet, rematerializing in the new location as a free action. This movement does not provoke attacks of opportunity. Creatures in this line take 10d6 points of electrical damage and are staggered for 1 round (a successful Reflex save halves the damage and negates the staggered condition, spell resistance applies). Objects in your path are damaged as well, with combustible objects being set ablaze and metals with low melting points melted. If your path is interrupted by a barrier or otherwise deflected, you materialize short of your final destination in the nearest open space; targets in the line to that point take damage as normal. You are immune to electricity while this spell lasts."
through a cloud of Obscuring Mist Which does:
"A misty vapor arises around you. It is stationary once created. The vapor obscures all sight, including darkvision, beyond 5 feet. A creature 5 feet away has concealment (attacks have a 20% miss chance). Creatures farther away have total concealment (50% miss chance, and the attacker cannot use sight to locate the target).
A moderate wind (11+ mph), such as from a gust of wind spell, disperses the fog in 4 rounds. A strong wind (21+ mph) disperses the fog in 1 round. A fireball, flame strike, or similar spell burns away the fog in the explosive or fiery spell’s area. A wall of fire burns away the fog in the area into which it deals damage."
Well From my understanding the Ride the lightning would transport me in a straight Line and Burn away anything it touches, in this case the mist. and deal it's damage to anyone it hits.
The DM tells me that I Curved during Flight and ended up 90 ft to the Left of the intended destination (mind you it was a blind shot through the enemy straight in front of me, and then up to 120 ft straight passed him) But ended up Like 20 squares above him on the map (Up instead of Right on the map). OBscuring mist doesnt cause Deflect and Ride the Lightning isn't vision based.
How would you guys or Girls Rule this Situation?