Last I came up with the thing where I casted Poison Gas Could to one square. It hindered movements, but obviously it won' hinder flying creature movement (for example Falcon from Beatmaster)...so if falcon or raven (from Wizard's Familiar) stays in that square does it take any damage? As it is flying and don't attack any creature in that square.

About electrify...does it cause damage for flying creatures?

Then...one question from fast creature  movement. Is it allowed to move four squares, if it only moves and don't attack.