Lion I call on when I need a quick and ferocious response, especially when writing fiction; for example, in entering the consciousness of Arslanshahin (whose very name, "arslan," means "lion"), the quick and ferocious war chief in A Gift for the Sultan.
Mr. Glib is helpful when I just need a cleverer way to say not much at all, or have to summarize a complex idea tightly — as in the promotional text on the back cover of my novel.
All these characters live within me, like any good alter ego. You can read more about them here. All of us send greetings to you and your alter egos, too — you must have one or two at least, right?
Here's how Horst Bienek put the problem of the writer alone, without such an alter helper, in the last stanza of his poem about his worksite ("Der Arbeitstisch"):
In der Schreibmaschine ein weißes leeres Blatt(In the typewriter a blank white page
das mich verwundet
Ich starre darauf
that wounds me
I stare at it)
(Bear image from Solar Navigator/Animal kingdom)