The New "Celerity" Spells (PHB2) = Wizardly Fun & Rules Weir

[Book]

PHB2 - pg. 105 ... Check out the 3 Celerity spells. The sexiest and most interesting one for multi-tasking abuse being the middle one (4th level).

First off, its "interrupt" rules as an Immediate Action spell will no doubt cause rules arguments galore in regards to initiative order and the lack of interrupt D&D rules in general (the spell's author must love playing blue in M:tG).

Second, dealing with the Daze effect can be done through a limited number of means. The spell Favor of Ilmater (PGtF) comes to mind at first.

Next, Twinning a Celerity (via metamagic Rod, Incantatrix/Artificer metamagicking, etc.) can net you a bunch of awesome ways to deal with any given combat. Via 2 additional standard actions ... just about whenever you damn well please.

Are there any additional infinite loops or additional action engines in this combo? Perhaps - I'd have to experiment with it some more.

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Use a Wand of Celerity or go the traditional prep route ... this spell is damn sweet and damn versatile. A preliminary run-through of the resource expenditure shows that this looks viable both economically and character resource-wise.

Psionics has its own version of this nonsense using Hustle and Synchronicity, although psionics are not my bailywick. Maybe someone here can give us a value comparison between the arcane and psionic versions of gaining these extra actions.

[Lago_AM3P]

It's an immediate action, so it thus can only be done once per round.

However, I'm sure there's some metamagic feat or character option or whatever that will increase the casting time. So we can re-quicken it or something.

[Book]

Good call .. I'll poke around and see how to best resolve that.

Also, now that I think about it, a recent sourcebook outright stated that Immediate Action or Swift Action spells now *definitely* take 1 standard action to cast if done so through a device. Bleh.

[User3]

1147749314[/unixtime]]It's an immediate action, so it thus can only be done once per round.

However, I'm sure there's some metamagic feat or character option or whatever that will increase the casting time. So we can re-quicken it or something.

Can't you quicken any spell with a casting time less than a full-round action?

So, in theory, you could have a sorcerer casting a twinned version as a standard action (because of the metamagic/casting time bullshit), a twinned quickened prepared version as a free action usable once per round, and the normal (immediate) version, prepared and twinned.

[Username17]

The restriction on Immediate Actions is that you can only use one between your turns. Your turns are actually defined as being when you are allowed to take a standard action. So if you can figure out how to spend an immediate action to get a bonus standard action, this actually resets your immediate action counter by definition.

So... if you can get your hands on Innate Spell: Mordenkainen's Lucubration, then it's possible to go off into infinite time.

You need:
Innate Spell: Mordenkainen's Lucubration.
Twinned Celerity.

Then you cast Twinned Celerity, getting two bonus standard actions. Then you spend one of those actions casting mordenkainen's lucubration to replace the Celerity (because it still counts as a 4th level spell even though it uses an 8th level slot), and the other action to do anything else.

Now, since you've had a turn since the last time you used an Immediate Action, you cast Twinned Celerity again. And you replace the Celerity and perform another action.

And so on. You can recycle and use any number of spells up to 5th level, and that can include metamagiced versions oflower level spells. Innate Spell: Mordenkainen's Lucubration is actually rather hard to get. Not impossible, just hard. You need to get your hands on a 14th level spell slot and then set it on fire, but you only need to have the spell slot transiently because the spell slot isn't a prerequisite of the Innate Spell Feat.

Now, this could be argued to not work on the grounds that Innate Spell only works once per round. But Celerity appears to give you an extra round, so it looks legit to me.

-Username17

[Book]

Very nice.

There's probably some Celerity tricks you can run with your familiar casting this spell as well. Via Imbue Familiar with Spellcasting Spell and the new PHB-2 feat that grants familiar with small level spells.

[Book]

Celerity spells are also good candidates for the Contingency spell and the Craft Contingency feat. Cleverly worded, you can set your interrupt actions to open up a lot of combat options for your spellcaster.