Grand Arsenal: Only that holds you back is your creativity, but that doesn't matter because you are a creative person

Ghoul: You have perfect control over each one one of them and you can even combine them and you can even use all 4 at once, but only for 5 five minutes or you'll go insane and unleash your kakuja

Symbiotes: Nothing

(A/n: I decided to not add any off the symbiotes weakness because I want the reader to be badass and somewhat op)