The Black Cat can negate 2 of the 3 symbols 3 times, for when you really don't want to pull tablets and elder things and catastrophically fail - you'll even have a decent chance of passing the test.
As far as weakness mitigation goes, this is rather XP expensive as Daisy's elder sign effects are quite good and don't need replacement; though the cat's soak is better than anything else she can get in faction.