Casting Time

Most spells have a casting time of 1 standard action. Others take 1 round or more, while a few require only a swift action. A spell that takes 1 round to cast is a full-round action. It comes into effect just before the beginning of your turn in the round after you began casting the spell. You then act normally after the spell is completed. When you begin a spell that takes 1 round or longer to cast, you must continue the concentration from the current round to just before your turn in the next round (at least). If you lose concentration before the casting is complete, you lose the spell. A spell with a casting time of 1 swift action doesn't count against your normal limit of one spell per round. However, you may cast such a spell only once per round. Casting a spell with a casting time of 1 swift action doesn't provoke attacks of opportunity.