Kurotowa
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Koewn said:Huh. My text here states: "At any level when a Warlock learns a new invocation, he can also replace an invocation he already knows with an invocation of the same or lower grade."
Now, granted, the example text calls out levels 6, 11, and 16, which lends itself to your statement (and the text under Special for those levels actually says "New Invocation (X,X,X)" where X is least, greater, and dark), but the next column, Invocations Known, goes from 1 to 2 at 2nd level, which indicates he learns a new invocation at 2nd level. Since that's a level where he learns a new invocation, he can replace his 1st level invocation with one of the same or lower grade, which is fixed at least right now.
It's the difference between spells known and access to a new spell level, to put it in sorcerer terms. I followed the warlock arguements on the WotC boards some because I think the class has potential, and this one has come up a lot. Luckily, the book's writer has shown up to put a few questions to rest. Here's the original giant thread and the new summery thread. From it,
Rich Baker said:Q: At what levels can a Warlock swap out an invocation with a different invocation of equal or lesser grade? Anytime a new invocation is learned, ie 2, 4, 6, 8, 10, 11, 13, 15, 16, 18 and 20, or anytime a new invocation grade is achieved, ie 6, 11 and 16.
A: I'm pretty sure that this is intended to say: "At any level where you gain access to a new power level of invocations," meaning 6, 11, 16.