I'm trying to come up with a good way to convert Warlocks gaining LesserInvocations to E6, and not having the easiest time doing it.
They should have the ability to do so, because a Warlock stuck with one Least Invocation while his wizard buddy takes lots of additional spell slots doesn't work quite right, but Extra Invocation normally grants an invocation one type lower than your highest-powered Invocations(ie. in E6, only Least)
So, what's the right way to bring them over?
a) Don't -- and then wonder why nobody plays them anymore.
b) Let Extra Invocation grant additional Lessers -- after all, Wizards get an additional 3rd spell per feat, right?
c) Let Extra Invocation grant Lessers on a 2 feat: 1 Lesser basis.
d) Let Extra Invocation grant Lessers on a 3 feat: 1 Lesser basis.
Thoughts?