re ravens: You assume they have something useful to say and that speaking would be beneficial. Evidentally you've missed the paragraph hidden in the DMG that suggests having raven familiars constantly distracting their mages and offering really bad advice.
"Fireball? You're going to cast fireball?! ... HEY, GUYS! Mr. Pointy Hat is gonna frazzle your collective tuchus with his great balls of fire! Any second now! ... Don't look at me that way; I suggested he try to treat you like sentient humanoids and try talking first, but did he listen to me? NOOOoooo! I'm just a bird. 'Let's blast 'em,' he says. 'You fly ahead for recon,' he says. ..."
"Fireball? You're going to cast fireball?! ... HEY, GUYS! Mr. Pointy Hat is gonna frazzle your collective tuchus with his great balls of fire! Any second now! ... Don't look at me that way; I suggested he try to treat you like sentient humanoids and try talking first, but did he listen to me? NOOOoooo! I'm just a bird. 'Let's blast 'em,' he says. 'You fly ahead for recon,' he says. ..."