I actually looked up Vertigo Field. The field is difficult terrain. Attacks made through or from inside the field have 20% miss chance. Enemies have to roll Fortitude or be nauseated for a round. Once the save is failed, they need not make another. Emiko can designate all of us as immune to the nausea.<br/><br/>This spell doesn't seem that good, except for how slow the enemies will be made. And the nausea which will let us take out the maids swiftly. And thankfully, call lightning laughs at your miss chance, cause it ain't an attack.