Dracorat said:
I miss the days of "I see where you are coming from and hold a different opinion, but can appreciate that you have your own opinion."
What are you trying to say? That anyone who disagrees with you should just drop the issue, otherwise, they are not being polite?
Core rules do not really have Swift Actions. They are a wart add on to allow one and only one extra spell (or power) per round, but limited to certain types of spells.
The very purpose of them is to add a concept to the game that is very balance specific. The "time aspect" of them is mostly a red herring to the conversation. The moment you start screwing with that concept is the moment you start screwing with game balance.
Most Swift spells (and powers) are typically movement or defensive in nature, but some are buffs and a few are offensive.
Let's take an example:
The PCs are fighting a Dragon and his flunkies. The PC Sorcerer is hidden a bit from the dragon itself, but is fighting one of the minions.
The Sorcerer decides to cast Assay Spell Resistance, take a 5 foot step out of hiding and away from the minion, and then cast his metamagic Empowered Cone of Cold on the Dragon. But, the Dragon is tough and he definitely does not want to cast the Cone of Cold without ASR.
The minion was readying an action and interrupts the Sorcerer's ASR. Without the House Rule, the Sorcerer can at best attempt to concentrate (or not) to cast a spell and kill the minion. With the House Rule, the Sorcerer can also concentrate a second time and possibly get ASR up this round.
Next round using core rules, the Sorcerer could step 5', ASF, Empowered Cone of Cold the Dragon and then his action would be complete.
Next round using the house rule, the Sorcerer could step 5', Empowered Cone of Cold the Dragon and then cast another swift spell. For example: Distract Assailant, Forcewave, or one of the Breath spells if the Sorcerer has some form of Draconic heritage and a Breath weapon, etc.
Whether this balance change is balanced or not is debatable. However, it is a change and it does affect game balance. It could incentive Sorcerers and Psions to take certain Immediate and Swift spells or powers in order to gain certain combinations. And although many people do not think Sorcerers are overpowered (I am not one of those people), many people do think that Psions are overpowered and giving them more options is suspect balance-wise.