HeavyG said:I like those spells because they add another element to combat strategy.
Dimwhit said:So when you cast, for example, a summoning spell, it doesn't come into effect until just before your next turn, and you're vulnerable to disruption for the entire round. Why? ...
In 3.5 PHB (I apologize for not having the page numbers, don't have the book at work) when you cast a full round spell you are only vulnerable to disruption when you start the spell on your turn. My DM and I had a long discussion on this just a couple of weeks ago and I looked it up to check this out specifically.
When you begin a spell that takes 1 round or longer to cast, you must continue the invocations, gestures, and concentration from one round to just before your turn in the next round (at least). If you lose concentration after starting the spell and before it is complete, you lose the spell.
You only provoke attacks of opportunity when you begin casting a spell, even though you might continue casting for at least
one full round. While casting a spell, you don’t threaten any squares around you.
Your right, it was AOOs specifically I was thinking of. I beg forgiveness.
I think you hit the nail on th' head (ouch), with that speculation. The more I think about it, the more I see the "full round casting time" to be more about when they wanted the spell to "go off", and less about the perceived need to balance the spell's power.Li Shenron said:...I think another reason might have been that they didn't want the summoned creature to act in the same round when you start casting?