I'm only 9 hours into the game and only have the 3 familiars you get through the story, but my favorite so far is Thumbelemur I think it's called. Looks funny and I like it's attack rate as well as strength.
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hmm there so many! but catastroceros, dynamite, and prolly sugarplum sprite are up there on my favorite familiars.
Currently my favorites are Boggly-Boo (w/ improved defence), Little Bighorn and the Shrimpaler.
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