Talk:Arcane Blade (3.5e Spell)
From D&D Wiki
The duration is specified as “Concentration” which normally requires a standard action each round to maintain unless otherwise specified. A touch attack also normally takes a standard action to perform. Perhaps what sort of action is required for maintaining concentration could be specified e.g. swift action, or move-equivalent action, so that the spell would not expire after the touch attack used the standard action for the round.