Once during the spell’s duration, as a swift action, the subject of this spell can gain a +1 bonus to attack, + 1 per four caster levels beyond 1st (+2 total at 5th level, +3 at 9th, etc.), or gain an additional 5 feet to speed, +5 feet per four caster levels (+10 feet total at 5th level, 15 at 9th level, etc). This effect lasts until the end of the subject’s next turn.